Bob Harper ("The Super Carb Diet"); parenting expert Erika Katz; a program pairs military veterans with youth in dangerous neighborhoods; author Chad Veach ("Faith Forward Future").
Chris Meloni ("Happy!"); Judge Harry presides over audience members' cases; Michael McDonald performs.
Thandie Newton ("Westworld"); Lauren Makk ("Home Made Simple"); singer Gladys Knight prepares pork chops; mentalist Lior Suchard performs a mind-blowing experiment.
Jaimie Alexander ("Blindspot"); chef Kristen Kish prepares beef rib-eye steak with leek fritters and mustard sabayon; simple money-saving advice; Charlamagne Tha God (book "Black Privilege").
Singer Naomi Judd; eating for a stress-free holiday; the best ways to wrap presents; Harry performs a holiday classic.
Glenn Close ("Crooked House"); Hong Chau ("Downsizing"); Casey Webb ("Man v. Food"); Harry and Tweedy perform a holiday classic.
Scott Eastwood ("Pacific Rim 2"); Keala Settle ("The Greatest Showman"); Harry tests out the latest holiday products and performs a holiday classic.
Henry Winkler ("Better Late Than Never"); holiday dessert recipes; Carter Oosterhouse ("The Great Christmas Light Fight"); Patti LaBelle performs.
Martha Stewart shares tips for setting a beautiful holiday table; One Simple Wish founder Danielle Gletow; chef Nonna Maria; Harry performs "Holiday Elf."
Actor John Cena ("Ferdinand"); inventors Joy Mangano and Sandra Martin; Caleb McLaughlin ("Stranger Things 2").
Hot holiday gifts; a high school senior helps make a blind freshman's dream of playing in a marching band come true; actor Tom Cullen ("Knightfall"); Harry performs "O Holy Night."
Authors Jenna and Barbara Bush; holiday toys; singer Nikki Ross performs.
Danielle Brooks "Orange Is the New Black"; Miss New York and Miss New Jersey on the This Is Beauty movement; holiday decorating; author Dawn Russell's hassle free, healthy dinner recipes.
Singer Cyndi Lauper; astronaut Peggy Whitson; calorie-saving snack swaps; actor Jason Mitchell "Mudbound."
Comic Jay Pharoah; inspirational pets that have been named Dog & Cat of the Year by the ASPCA; Deborah Tillman with tips on surviving the holidays; actor Carly Chaikin.
Whoopi Goldberg's new line of holiday sweaters; tips for dating during the holidays; chef Josh Capon makes sautéed pork with roasted butternut squash with pomegranate and pumpkin seeds.
Actress Sarah Michelle Gellar makes Thanksgiving treats; getting deals on Christmas gifts; a woman starts a community service program that provides correspondence for seniors to combat loneliness and isolation; Marsai Martin ("black-ish").
Anthony Anderson ("black-ish"); effortless dessert and last-minute table decorations for Thanksgiving; Suzanne Somers (book "Two's Company"); singer Cyndi Lauper and Harry entertain unsuspecting people on an elevator.
Gene Simmons (book "On Power"); Camren Bicondova ("Gotham"); Harry tells parents the gender of their unborn child; Harry's wife, Jill, prepares doodle cake.
Jacob Tremblay ("Wonder"); singer Billy Ray Cyrus; author Lauren Wilson ("The Walking Dead: The Official Cookbook and Survival Guide") prepares recipes featured on the hit show; a lucky studio-audience member gets a vacation.
Shemar Moore ("S.W.A.T."); three winter makeup looks; Elizabeth Smart ("I Am Elizabeth Smart"); a lucky studio-audience member gets a vacation to an amazing destination.
Leslie Odom Jr. ("Murder on the Orient Express") performs; a corporate lunch delivery program employs foster and re-entry youth; food hacks to enjoy the holiday season without piling on the pounds; a lucky studio-audience member gets a vacation.
Guillermo Díaz ("Scandal"); singer Billy Ray Cyrus; the Cyr wheel; Harry presides over audience members' cases; a lucky studio-audience member gets a vacation to an amazing destination.
Actor Dick Van Dyke; Cheyenne Jackson ("American Horror Story"); Harry tests out the latest products; Gary Chan whips up his famous matcha cream puffs dessert; a lucky in-studio audience member receives a vacation to an amazing destination.
An Air Force couple marry in-studio, and Harry performs for their first dance; members of the Navy, Air Force and Army have a cook-off; Jaimie Alexander ("Blindspot").
Kate Bosworth ("The Long Road Home"); the woman who created a custom-made baseball card to reveal to her husband that she is a kidney donor match for him returns to tell how they are doing, post-surgery; singer Gladys Knight makes pork chops.
Comic Carol Burnett; the founder of a toy company celebrates childhood diversity and empowers children to dream big; Harry has to make up a song; dog trainer Brandon McMillan.
Talk show host Oprah Winfrey (book "The Wisdom of Sundays" and food line O, That's Good) is interviewed and performs.
David Boreanaz ("SEAL Team"); Adam Lathan prepares Monday red beans; Adam Conover ("Adam Ruins Everything"); Harry performs.
Olympian Michael Phelps; interior designer Moll Anderson discusses color in the home; Houston police officers prepare smoked spare ribs and beef brisket; a sibling a cappella child trio performs.
Cheryl Hines ("A Bad Moms Christmas"); chef Rocco DiSpirito (cookbook "Rocco's Healthy & Delicious") makes chickpea veggie burgers; singer Sheila E. (album "Iconic: Message 4 America") is interviewed and performs.
Darius Rucker (album "When Was the Last Time"); chef Nonna Maria makes stuffed calamari with linguini; young musicians meet jazz pianist Benny Green.
Dolly Parton (children's album "I Believe In You"); Shanynn Covington ("Food Hacks for Kids") prepares Halloween-inspired treats; a creepy-cake connoisseur shares her latest outrageous creations; Harry performs.
Heather Graham ("Law & Order: True Crime: The Menendez Brothers"); fun and easy DIY Halloween costumes; Halloween candy show-stoppers with candy queen Jackie Sorkin; Chris Sullivan ("This Is Us").
Miles Teller, Beulah Koale and Jason Hall ("Thank You for Your Service") and soldier Adam Schumann; author Lauren Wilson ("The Walking Dead: The Official Cookbook and Survival Guide"); musician and breast-cancer survivor; Gloria Gaynor performs.
Harry and wife Jill Connick reveal one of the toughest challenges they faced.
Tyler Perry ("Tyler Perry's Boo 2! A Madea Halloween"); JoAnna Garcia Swisher ("Kevin (Probably) Saves the World"); musician Beverly "Guitar" Watkins; Stephanie Arne ("Mutual of Omaha's Wild Kingdom") brings spooky, scary animals.
Yvette Nicole Brown ("The Mayor"); author Dennis The Prescott ("Eat Delicious") makes maple buttermilk fried chicken; Harry tries hula dancing; a 19-year-old blind college student fulfills his dreams on the football field.
Matt Iseman ("American Ninja Warrior"); Deborah Tillman ("America's Supernanny") shares an exercise to help parents understand what their teens are going through; Harry answers home viewers' questions.
Alfonso Ribeiro ("America's Funniest Home Videos"); director James Burrows ("Will & Grace," "Friends"); the first female NASCAR pit-crew member, Christmas Abbott (book "The Badass Life"); the Budgetnista's seasons saving guide.
Jessie James Decker ("Eric & Jessie: Game On") performs; high-tech trends for the kitchen; pumpkin spice spray; children perform a dance routine from "Dirty Dancing."
Taran Killam ("Killing Gunther"); Halloween costumes for pets; Big & Rich perform; a recipe for milkshakes that are popular on social media.
Terry Crews ("Brooklyn Nine-Nine"); Mark Rosati (book "Shake Shack, Recipes and Stories"); Sylvia Hoeks ("Blade Runner 2049"); a nonprofit dedicated to the higher educational needs of adults with Down syndrome.
Katharine McPhee ("Scorpion") performs; Harry spotlights Jen Welter, the first woman to hold a coaching position in the NFL; Melissa Ben-Ishay tells of building her mini-cupcake empire; Harry performs a tribute to Tom Petty.
Actress and Model Molly Sims; fall fashion; mentalist Wayne Hoffman; this is trending: tantrum yoga.
Debra Messing, Megan Mullally, Eric McCormack and Sean Hayes ("Will & Grace"); Donatella Arpaia prepares sausage Genovese; Jill Connick helps audience members look more age-appropriate; a woman who is a U.S. Naval engineer; comic Robin Thede.
Actor Craig Robinson ("Ghosted"); comfort food; 13-year-old internet sensation Kaitlinh Nguyen shows how to make slime; singer Vaughn "V-Keys" Henry.
Actor Seth MacFarlane ("The Orville"); beauty expert Kate Somerville; CIA expert shares self-defense moves.
Actor Donnie Wahlberg; radio host Jenny McCarthy; healthy tailgating.
Queen Latifah ("Star"); a woman creates a humanitarian fashion brand, including a collection of jackets that turns into tents to help homeless and displaced people; Harry tests three popular household hacks; Ledisi performs.
Debra Messing ("Will & Grace"); a 12-year-old yoga teacher; Lauren Makk ("Home Made Simple"); the best and worst foods to eat before major life events.
America Ferrera ("Superstore"); a formerly homeless hairdresser makes over homeless women to help them land jobs; children try to identify objects from the past; Valerie and Imani Francis perform.
Lisa Ling ("This Is Life With Lisa Ling"); Jenni Pulos ("Flipping Out") raps with Harry; restaurateurs prepare shrimp po'boy; Judge Harry presides over audience members' cases.
Bryshere Gray ("Empire") teaches Harry the Friday Night Special dance; Kaitlin Olson ("The Mick") reveals a guilty pleasure; Dana Loia makes macarons; dating coach Bela Gandhi describes the types of personality traits to avoid when dating.
Jussie Smollett ("Empire"); a food hacker deconstructs brand-name foods to make clone recipes for use at home; author Ms. Pat ("Rabbit: The Autobiography of Ms. Pat").
Kumail Nanjiani ("Silicon Valley," "The LEGO NINJAGO Movie"); actress Roma Downey; 10-year-old twin musical prodigies perform; Harry tells expecting parents the gender of their child.
Kristen Bell ("The Good Place"); tech trends for pets; a singer whom doctors said would never be able to talk performs.
Terrence Howard ("Empire"); an interior designer's nonprofit organization helps establish homes for 200 former foster-care kids who have aged out of the system; finding endless summer getaways; comic Michelle Buteau.
Candace Cameron Bure, Jodie Sweetin and Andrea Barber ("Fuller House"); guests with unusual talents; a rescue dog works as a certified therapy dog; chefs face off in a chicken-wing battle.
Neil deGrasse Tyson ("StarTalk"); celebrity stylist Tai Beauchamp; Stacy Piagno, the third female pitcher to get a win in men's professional baseball since the 1950s; "Budgetnista" Tiffany Aliche.
Ben McKenzie ("Gotham"); Adriana Lima ("American Beauty Star"); Danny Seo ("Naturally, Danny Seo") discusses healthy lifestyle products; celebrity makeup artist Mally Roncal.
Adrian Grenier ("Entourage") discusses ocean conservation; a girl campaigns for a playground that can accommodate children of all abilities; hacks for kitchen storage, organization and cooking; 9-year-old guitar player Marel Hidalgo performs.
NFL star Greg Jennings; South Sudanese model Nyakim Gatwech; an 11-year-old founds a free music-teaching service for underprivileged children; favorite nostalgic songs; Rob Parissi performs.
Tom Bergeron ("Dancing With the Stars"); 11-year-old motivational speaker Nyeeam "King Nahh" Hudson; dating expert Matthew Hussey; a woman creates a custom-made baseball card to reveal to her husband that she is a kidney donor match for him.
Stephanie Arne ("Wild Kingdom") brings cute baby animals; brides rescue others when a chain store unexpectedly closes, leaving them without wedding dresses; Jon Rudnitsky ("Home Again"); Harry performs with Gladys Knight.
Candice Bergen ("Home Again"); an 11-year-old female boxer has aspirations to compete in the 2024 Olympics; Harry performs Sly & the Family Stone's classic hit "Everyday People."
Sutton Foster ("Younger"); Harry visits Texas as it tries to recover from Hurricane Harvey; Quincy Brown ("Star"); a 5-year-old gospel singer performs with Harry.
A third-grade teacher panhandles to raise money for classroom supplies; a restaurant run entirely by grandmothers; Harry performs with Billy Joel.
Harry highlights heroes and trailblazers, including 9/11 firefighters, the first African-American woman to be elected sheriff in Texas, and three nurses who saved a man's life; a special-education teacher gets a surprise; a sneak peek of Season 2.
Harry looks back at "My Big Secret" celebrity reveals with Jeremy Renner, Patricia Heaton, Peter Krause, John Lithgow, Jeff Probst, Taye Diggs and Ali Wentworth.
Harry revisits music guests Keith Urban, Gloria Estefan, Lauren Alaina ("American Idol"), and Ricky Martin.
Abigail Breslin ("Dirty Dancing"); comic Carol Burnett; an all-female mariachi band.
Daymond John, Barbara Corcoran and Mark Cuban ("Shark Tank") share advice for launching a successful business; children who have founded startups.
Milo Ventimiglia ("This Is Us"); Nico Tortorella ("Younger"); Shemar Moore ("The Bounce Back"); Josh Holloway ("Colony").
Chefs Mario Batali ("The Chew"), Curtis Stone, Tregaye Fraser ("Food Network Star"), and Harry's wife, Jill Goodacre.
Ashley Graham (book "A New Model"); Stephanie Arnie brings baby animals; Reid Scott ("Veep"); chef Ivan Orkin prepares a signature ramen dish.
Daphne Oz ("The Chew") and magazine editor Lisa Oz; Yara Shahidi ("Blackish"); Harry's trainer, Amy Giaquinto, gives workout advice; Colton Smith and Jack Steward ("Rock the Park").
Zach Woods ("Silicon Valley"); Harry helps a woman fix her online dating profile; a woman challenges herself to feed 30,000 people before her 30th birthday; chef Fabio Viviani prepares rigatoni sausage carbonara and baked penne sausage.
Singer Nick Lachey; Nate Berkus and Jeremiah Brent ("Nate & Jeremiah by Design"); grilling advice; Harry must pick out a renowned sax player from his audience without asking questions.
Sarah Michelle Gellar (book "Stirring Up Fun With Food"); a former competitive skater helps empower young girls; Herizen F. Guardiola ("The Get Down"); a single mom gets the trip of a lifetime; Harry performs "More."
Freida Pinto ("Guerilla"); Mother's Day gifts; Warren Kole ("Shades of Blue"); Kids in the Band.
Harry's dad performs with him; Ian Harding ("Pretty Little Liars"); Jeremy Wade ("River Monsters"); Asia Monet Ray performs; Harry tries being a horse jockey.
Jordana Brewster ("Lethal Weapon"); a first-grader turns an assignment into a best-selling book; Prentice Penny gives advice for living upscale on a budget; a full-figured swimwear fashion show with designer Gabi Fresh.
Kristen Schaal ("The Last Man on Earth"); makeup trends with Mally Roncal; Rose McIver ("iZombie"); world champion skateboarder Lizzie Armanto teaches Harry basic skateboarding moves.
Clinton Kelly ("The Chew") prepares grilled shrimp with tomatillo salsa; Harry visits places around New York; Erin Richards ("Gotham"); Harry performs "Besame Mucho."
Comic Ms. Pat; Melissa Peterman ("Baby Daddy"); a nonprofit helps teens and young women build self-esteem; Harry visits places around New York.
Lilly Singh tells how to have success on YouTube; a grandmother who saved a police officer's life; Harry visits places around New York; five trending gadgets that make outdoor experiences entertaining and easy.
Rachel Dratch and Jenna Elfman ("Imaginary Mary"); singer Fantasia; chef Michael Psilakis makes a sweet-and-sour peppers and onions dish; Harry visits places around New York.
Julianne Hough ("Dancing With the Stars"); a principal at an all-girls school teaches her students to be fierce females; Harry visits places around New York; comic JR De Guzman; 5-year-old viral-video singing sensation Caleb Serrano performs.
Harry unites 20 adopted dogs with their forever families; Charlamagne Tha God (book "Black Privilege"); a woman feeds more than 6,000 people a month; Cody Johnson performs.
Tip "T.I." Harris ("T.I. and Tiny: The Family Hustle"); chef Sal Scognamillo; Geoff Stults ("Unforgettable"); Harry performs "Faith."
Anna Chlumsky ("Veep"); food blogger Dennis The Prescott; Amirah Vann ("Underground").
Jane Seymour ("Sandy Wexler"); body-language expert Janine Driver; a mom tells her story of rebuilding her life after a routine hospital visit left her paralyzed; Mack Wilds ("Shots Fired"); chef Donatella Arpaia makes pizza with spinach pesto.
Derek Hough ("World of Dance"); Keith Powers ("Famous in Love"); YouTube chefs JP and Julia whip up a giant grilled cheese; two long-lost sisters reunite after a 10-year search; comic Michelle Buteau.
Kurt Russell ("The Fate of the Furious"); Mckenna Grace ("Gifted"); beauty treatments to do at home; a Boston community rallies around a family who lost everything in a fire; Harry performs.
Harry and lifestyle expert Danny Seo celebrate Earth Day with giveaways; Peter Krause ("The Catch"); dancer Maddie Ziegler (book "The Maddie Diaries"); a teacher from Oklahoma makes her favorite biscuits and gravy.
John Lithgow ("Trial & Error"); Harry samples unique foods in San Francisco; Condola Rashad ("Billions"); Jacob Collier performs.
Jax ("American Idol") discusses battling thyroid cancer and performs; children share their amazing inventions; Robin Lord Taylor ("Gotham"); Harry tries juggling.
Jeff Probst ("Survivor"); billiard champion Emily Duddy teaches Harry to play pool; Brian d'Arcy James ("13 Reasons Why"); Harry presides over audience members' cases; Keesha Sharp ("Lethal Weapon").
Tyrese ("The Fate of the Furious"); five ways to de-clutter; a teen founds a charity to uplift young patients; a young man is dropped off in a random city and provided with only $25 in a challenge to survive and thrive for 30 days.
Kevin James ("Kevin Can Wait"); Selenis Leyva ("Spider-Man: Homecoming"); a former WNBA star fights cancer and starts a foundation; lifestyle expert Alejandra Ramos shows how to have a date night at home; Harry tries to play bagpipes.
Hannah Simone ("Kicking and Screaming"); Lucien Laviscount ("Snatch"); Sandra Lee makes three treats with one box of quick bread; Harry reunites real-life heroes with the people whose lives they saved; Sidney Torres ("The Deed").
Sanaa Lathan ("Shots Fired"); Monte Durham; Merle Dandridge ("Greenleaf"); Geoffrey Zakarian ("Chopped," "Cooks vs. Cons") prepares pomegranate-glazed short ribs.
Kate Walsh ("13 Reasons Why"); Emily and Haley Ferguson ("The Twins: Happily Ever After"); a former CIA agent tells how to keep a home and family safe; Danny Gokey performs.
Cooking with Aaron "Big Daddy" McCargo Jr.; Harry answers viewers' questions; women who empower others and make a difference in their communities; hamster balls.
Actor Michael Pena ("Chips"); actress Brooklyn Decker ("Grace and Frankie"); women who are empowering others and making a difference in their communities; a 10-year-old chef prepares one of his favorite dishes.
David Boreanaz ("Bones"); spotlighting women who empower others and make a difference in their communities; mentalist Ryan Oakes; Harry answers kids' questions.
Tahj Mowry, Derek Theler and Jean-Luc Bilodeau ("Baby Daddy"); spotlighting women who are empowering others and making a difference in their communities; a performance from "Gazillion Bubble Show."
Zosia Mamet ("Girls"); Afton Williamson ("The Breaks"); Freddie Stroma ("Time After Time"); Harry prepares red beans and rice.
Keith Urban (album "Ripcord"); Dalen Spratt, Juwan Mass and Marcus Harvey ("Ghost Brothers"); Margaret Anne Florence ("Sun Records"); Harry takes over a mom's responsibilities for the day.
Actor Tony Danza; Jurnee Smollett-Bell ("Underground"); RJ Cyler ("Power Rangers"); an 80-year-old woman who looks 50 reveals her age-defying secrets.
Gillian Jacobs ("Love"); Danica McKellar (book "Goodnight Numbers"); Veronica "Pooh" Nash-Poleate ("She's in Charge"); women who empower others and make a difference in their communities.
Famke Janssen ("The Blacklist: Redemption"); a quick St. Patrick's Day dinner; Annaleigh Ashford ("Sunday in the Park With George"); IndyCar racer Alexander Rossi.
Ray Liotta ("Shades of Blue"); Josh Henderson ("The Arrangement"); 24-karat edible gold covered popcorn and a $1,000 sundae; Harry spotlights women who are empowering others and making a difference in their communities.
Milo Ventimiglia ("This Is Us"); Randy Fenoli celebrates the 10th anniversary of "Say Yes to the Dress" by surprising a very deserving "Harry" viewer; Philip Winchester ("Chicago Justice").
Justin Hartley ("This Is Us"); Wyatt Russell ("Table 19"); Duff Goldman ("Spring Baking Championship") prepares cherry clafoutis and provides business advice to a young baker.
Carla Gugino ("Wolves"); Billy Gardell ("Sun Records"); Jill Goodacre prepares one of Harry's favorite dishes; must-have fashion items of the season.
Laverne Cox ("Doubt"); shark-attack survivor Joseph Tanner; Boyd Holbrook ("Logan"); Timbaland and "The Pop Game" contestants perform.
Allison Williams ("Girls"); John Weisbarth and Zack Giffin ("Tiny House Nation"); chef John Besh prepares an authentic New Orleans dish; Harry tries lyra aerial dance.
Mark Cuban ("Shark Tank"); Harry takes over a mom's responsibilities for a day; Leighton Meester ("Making History"); comic Candice Thompson.
Malin Ackerman ("Billions"); Clive Standen ("Taken"); a few of Harry's favorite spots in New Orleans; people share weight-loss stories and advice.
Corey Hawkins ("24: Legacy"); Mae Whitman ("Rock Dog"); Hilary Farr and David Visentin ("Love It or List It"); a few of Harry's favorite spots in New Orleans; Harry vs. an NHL goaltender.
Singer Ricky Martin; comic Ms. Pat makes Oscar predictions; a few of Harry's favorite spots in New Orleans; an amazing child changing the world.
Gayle King ("CBS This Morning"); NFL star Tim Tebow; a few of Harry's favorite spots in New Orleans; catching up with past viral sensations.
Lennon Stella ("Nashville"); Archie Panjabi ("Blindspot"); a few of Harry's favorite spots in New Orleans; an amazing child changing the world.
Bridget Moynahan ("John Wick 2"); JoAnna Garcia Swisher ("Fist Fight"); an amazing kid changing the world.
Holly Robinson Peete ("For Peete's Sake"); "Animal Idol" with Cesar Millan and son Andre.
Jeff Perry ("Scandal"); Daymond John ("Shark Tank"); Harry has to guess who a mystery guest is.
Jennifer Esposito ("NCIS"); a surprise proposal; five eligible bachelors; Lillias White ("The Get Down"); Jeremie Harris ("Legion").
Retta ("Girlfriends' Guide to Divorce"); Danny Seo provides a Valentine's Day gift guide; Harry's wife, Jill Goodacre, prepares one of her favorite recipes; Harry performs "One Fine Thing."
Harry tapes his entire show with smartphones; actress Kathryn Hahn; DJ Steve Aoki (single "Just Hold On"); Georgetown Cupcake founders Katherine Berman and Sophie LaMontagne.
Ricky Gervais ("David Brent: Life on the Road"); Harry samples the finest fare Boston has to offer; Justice Smith ("The Get Down," Broadway's "Yen").
Colin Hanks ("Life in Pieces"); UFC champion Amanda Nunes teaches Harry some moves; Sullivan Stapleton ("Blindspot"); former NFL player Tim Tebow; Harry has to guess his mystery guest.
Laurence Fishburne ("Madiba"); Michael Symon ("The Chew"); Lauren Ash ("Superstore").
Celebrating female empowerment and the women behind the movements; actress Keke Palmer (book "I Don't Belong to You: Quiet the Noise and Your Voice"); singer Lauren Alaina ("American Idol"); Harry gives away a VIP trip for two to Mardi Gras.
Corey Hawkins ("24: Legacy"); Beth Stern ("Kitten Bowl"); Super Bowl pulled pork with Meathead; Harry spotlights women who are empowering others and making a difference in their communities.
Jace Norman ("Henry Danger"); Dan Schachner and his puppy players ("Puppy Bowl"); children share their thoughts on various topics.
Ali Larter ("Resident Evil: The Final Chapter"); UFC bantamweight champion Cody Garbrandt; Asa Butterfield ("The Space Between Us"); Harry tries extreme pogo.
Alan Cumming (book "You Gotta Get Bigger Dreams"); comic Cristela Alonzo ("Cristela Alonzo: Lower Classy"); Harry spotlights women who are empowering others and making a difference in their communities; audience members draw pictures of Harry.
Porsha Williams ("The Real Housewives of Atlanta"); Patrick Wilson ("The Founder"); Andrew Zimmern ("Bizarre Foods America"); Jordan Fisher ("Hamilton"); Harry presides over audience members' court cases.
Bryce Dallas Howard ("Gold"); Kelly Rowland ("The 10th Date"); Boy George ("Celebrity Apprentice").
Meagan Good ("The 10th Date"); Haley Lu Richardson ("Split"); easy food swaps that can save hundreds of calories.
Nick Offerman ("The Founder"); Emily Deschanel ("Bones"); top beauty trends of the year; child musicians perform.
Nina Dobrev ("xXx: Return of Xander Cage"); Yvette Nicole Brown ("The New Edition Story," "The Odd Couple"); musician BJ the Chicago Kid; women who empower others and make a difference in their communities.
Bryshere Y. Gray, Algee Smith, Elijah Kelley, Luke James, Woody McClain and Keith Powers ("The New Editon Story"); chef Curtis Stone ("My Kitchen Rules"); mentalist Lior Suchard performs; a balloon artist.
Actress Kirstie Alley; Nia Long ("Beaches"); digital trends; Harry spotlights women who are empowering others and making a difference in their communities.
Jewel ("Framed for a Murder"); Patrick Warburton ("A Series of Unfortunate Events"); Harry tries retro foods from the 1950s, '60s and '70s; Harry spotlights women who are empowering others and making a difference in their communities.
Harry and daughters Kate and Charlotte interview Cameron Dallas ("Chasing Cameron"); Michelle Monaghan ("The Path"); Harry answers celebrities' questions; Fat Rice chefs share secrets about their signature dishes; Pilobolus performs.
Josh Holloway ("Colony"); Lisa Edelstein ("Girlfriends' Guide to Divorce"); Harry presides over audience members' cases; Maj. Christina Hopper, the first African-American female fighter pilot in combat.
Actor Jerry O'Connell; chef Anne Burrell; Erinn Hayes ("Kevin Can Wait"); The Olate Dogs ("America's Got Talent") perform; women who empower others and make a difference in their communities.
Tim Gunn ("Project Runway"); Tregaye Fraser ("Kitchen Sink"); rappers Fat Joe and Remy Ma; Hiplet dancers.
Jaimie Alexander ("Blindspot"); comic Jen Kirkman; women who empower others and make a difference in their communities; 10-year-old pianist Brandon Goldberg.
Jude Demorest ("Star"); Chris Hardwick ("The Wall"); Harry presides over audience members' cases; Linda Miller Nicholson shows how to make rainbow pasta.
Hayden Panettiere ("Nashville"); Harry tries to break free of duct tape, ropes and handcuffs; singer Ro James; "Texas Cake House" stars share crazy dessert creations; Harry performs George Michael's hit "Faith."
Naomi Campbell ("Star"); Adria Arjona ("Emerald City"); exercise trends; Super Kid.
Chris Messina ("The Mindy Project"); Keith Carradine ("Madam Secretary"); Harry spotlights women who empower others and make a difference in their communities; exercise trends.
Brendan Fraser ("The Affair"); Janina Gavankar ("Sleepy Hollow"); Harry spotlights women who empower others and make a difference in their communities; exercise trends.
Lifestyle expert Danny Seo; Zoey Deutch ("Why Him?"); exercise trends; comic Gabriel Iglesias.
Mat Franco ("America's Got Talent") performs a magic trick; Lee Daniels ("Empire," "Star"); Joy Bauer shares must-have health foods; opera singer Ryan Speedo Green; exercise trends.
Terrence Howard ("Empire"); Chip and Joanna Gaines ("Fixer Upper," book "The Magnolia Story"); comic Nicole Byer ("Loosely Exactly Nicole"); Harry tries new gadgets to avoid walking; Harry performs "Smile."
Anthony Anderson and Tracee Ellis Ross ("blackish"); Harry tries surfboarding; Harry presides over audience members' court cases; Harry performs "Come by Me."
Sofía Vergara ("Modern Family"); Kid Ninja Warrior and "American Ninja Warrior" Jessie Graff take part in an obstacle course; Gabourey Sidibe ("Empire"); Harry takes over a mom's responsibilities for a day; Harry performs "Yes, We Can, Can."
Whoopi Goldberg ("The View," "Strut"); Harry competes with Jessie Graff ("American Ninja Warrior") in an obstacle-course race; WWE superstars John Cena and Nikki and Brie Bella; Savannah Guthrie ("Today").
Actress Sandra Bullock; a 16-year-old aims to be the youngest pilot to fly solo around Earth; Harry gets offered dangerous foods to eat; Kevin James ("The True Memoirs of an International Assassin"); Taraji P. Henson ("Empire").
Eric McCormack ("Travelers"); Harry tries to be a Rockette; Gretchen Mol ("Manchester by the Sea"); Harry sings "Silent Night."
Megan Mullally ("Why Him?"); making travel easy; Rao's owner Frank Pelligrino Jr. shares a holiday dish; Harry performs "O Holy Night."
Keegan-Michael Key ("Why Him?"); Ali Wentworth ("Nightcap"); Harry spotlights women who empower others and make a difference in their communities; Harry sings "I'll Be Home for Christmas."
Patti LaBelle ("Patti LaBelle's Place"); Jessie Graff ("American Ninja Warrior"); Mark Ballas ("Jersey Boys") and wife BC Jean; creating a stunning holiday table using items from around the house; Jackie Evancho performs.
Theresa Caputo ("Long Island Medium"); Sandra Lee prepares holiday dishes; Serayah ("Empire"); Harry sings "When My Heart Finds Christmas."
Tim Daly ("Madam Secretary"); Harry takes over a mom's responsibilities for the day; foodie gifts; Sarah McLachlan performs.
Rapper 50 Cent; Alfonso Herrera ("The Exorcist"); "Will Harry Eat It?: Holiday Edition"; Harry performs "Frosty the Snowman."
Andy Cohen ("Watch What Happens Live," book "Superficial"); Kyle Richards ("The Real Housewives of Beverly Hills"); last-minute holiday gifts; Train performs.
Benjamin Bratt ("Star"); Jacob Latimore ("Collateral Beauty"); chef Phillip Foss shares inventive dishes; Harry performs "Santa Claus Is Coming to Town."
Jeffrey Dean Morgan ("The Walking Dead"); Kevin Nealon ("Man With a Plan"); comic Bridget Everett; gadgets to take the stress out of getting ready for the holiday season; Aaron Neville performs.
Elizabeth Hurley and son Damian Hurley; extreme couponing; Todrick Hall (Broadway's "Kinky Boots"); dog expert Victoria Stilwell.
Jonathan and Drew Scott ("The Property Brothers"); Bellamy Young ("Scandal"); teens changing the world; Harry spotlights women who make a difference in their communities.
Shemar Moore ("The Bounce Back"); Matt Czuchry ("Gilmore Girls"); the year's must-have toys; Judge Harry presides over audience members' cases; Jon Batiste ("The Late Show With Stephen Colbert") performs.
NFL star Tim Tebow (book "Shaken"); Buddy Valastro ("Cake Boss") shows how to make a Santa cake; Harry spotlights women who make a difference in their communities; Jordan Smith ("The Voice") performs.
Patricia Heaton ("The Middle"); Meathead Goldwyn tells how to make a perfect roast; Meredith Hagner ("Search Party"); Miss Piggy and Harry perform.
TV and radio host Ryan Seacrest; bungee exercise; Harry performs "City Beneath the Sea."
Rachel Bloom ("Crazy Ex-Girlfriend"); Nico Tortorella ("Younger"); gifts for everyone in the family.
Actress Jamie Lynn Sigler; Mario Batali ("The Chew"); must-have toys for the holiday season.
TV personality Ryan Seacrest; Carla Hall ("The Chew") makes a warm roasted carrot salad with spicy cumin vinaigrette; women who make a difference in their communities.
Alfonso Ribeiro ("America's Funniest Home Videos"); Martha Plimpton ("The Real O'Neals"); teens changing the world; Harry takes over a mom's responsibilities for a day.
Christina Hendricks ("Bad Santa 2"); Ryan Seacrest; getting the best deals this shopping season; Harry takes on teen rock-climbing prodigy Kai Lightner.
Lily Collins ("Rules Don't Apply"); Ta'Rhonda Jones ("Empire"); Judge Harry presides over audience members' cases; Cirque du Soleil performs.
A fun-filled hour of surprises for Harry includes reunions and blast-from-the-past guests.
Where Scotty McCreery ("American Idol") is today; Jeff Watson ("Project Grizzly").
James Brolin ("I'll Be Home for Christmas"); Hayden Szeto ("The Edge of Seventeen").
Taye Diggs ("Empire"); Skylar Astin ("Graves"); lifestyle expert Danny Seo brings the hottest holiday gifts.
Jeremy Renner ("Arrival"); comic Chloé Hilliard; Harry faces off against world-champion boxers Cindy and Amanda Serrano; delicious Italian recipes with fewer calories and carbs.
Blair Underwood ("Quantico"); Josh Flagg, Josh Altman, James Harris and David Parnes ("Million Dollar Listing: Los Angeles"); mechanic Patrice Banks; singer Kim Burrell.
Comic Gary Owen ("The Gary Owen Show"); women make a difference in their communities; Harry takes over a mom's responsibilities so she can take the day off; a military surprise reunion.
Skylan Brooks, Tremaine Brown Jr. and Lillias White ("The Get Down"); Maureen McCormick ("The Brady Bunch"); David Cassidy ("The Partridge Family"); Harry learns classic 1970s dance the Hustle.
Comic Ricky Gervais (book "The David Brent Song Book"); Harry spends the night in a tiny house; Barbara Corcoran ("Shark Tank"); comic Ms. Pat.
Kevin James ("The True Memoirs of an International Assassin"); magician Kadan Bart Rockett ("America's Got Talent"); comic Phoebe Robinson (book "You Can't Touch My Hair"); women who make a difference in their communities.
Singer Common; where La'Porsha Renae ("American Idol") is now; Olympian Laurie Hernandez; Harry samples dangerous foods.
Chris Noth ("White Girl"); Harry performs his own version of a popular song; Pamela Adlon ("Better Things"); comic Chris Gethard ("Chris Gethard: Career Suicide"); how to de-bone a turkey.
Cuba Gooding Jr. ("American Horror Story: Roanoke"); Jill Kargman ("Odd Mom Out"); Daniel Sunjata ("Notorious"); children showcase their talents; Harry races groundbreaking motorcycle rider Leslie Porterfield.
Where famous "American Idol" contestants are today; Harry adjudicates audience members' cases; Nicole Byer ("Loosely Exactly Nicole"); Harry samples New York City's finest fare.
Wanda Sykes ("What Happened... Ms. Sykes?"); Gugu Mbatha-Raw ("Black Mirror"); a miniature dog; a teacup piglet; a miniature donkey; a teacher donates a kidney to her student.
Boris Kodjoe ("Code Black"); Science C performs spooky experiments; Dave Salmoni brings an alligator, an owl and other swamp animals; three fun and easy hacks for Halloween.
Maria Bello ("Goliath"); famous "American Idol" contestants and where they are today, starting with Kelly Clarkson; Penn & Teller perform; quick and easy Halloween costumes for adults; Harry spends the week trying something new each day.
Harry celebrates nurses, the unsung heroes of the medical world; Robin Roberts ("Good Morning America"); Harry spends the week trying something new each day.
Eric Dane ("The Last Ship"); Rumer Willis ("Over the Love" tour); Harry spends the week trying something new each day.
Chrissy Metz ("This Is Us"); actress Jamie Lee Curtis; Harry goes under cover as a tour bus guide in New York City; Harry spends the week trying something new each day.
Michael Chiklis ("Gotham"); Dakota Fanning ("American Pastoral"); outrageous Halloween costumes; Harry spends the week trying something new each day.
Jason Sudeikis ("Son of Zorn"); Karla Souza ("How to Get Away With Murder"); Harry samples the finest fare Chicago has to offer.
Gloria Estefan ("Get On Your Feet"); Randall Park ("Fresh off the Boat"); Harry takes over a mom's responsibilities for a day so she can relax and get pampered; teens who run empires.
Chip and Joanna Gaines ("Fixer Upper," book"The Magnolia Story"); Victoria Justice ("The Rocky Horror Picture Show"); spooky and creepy desserts for Halloween parties.
Shameik Moore ("The Get Down"); Harry presides over audience members' court cases; young children model their favorite Halloween costumes.
Danielle Brooks ("The Color Purple"); Giselle Eisenberg ("Life in Pieces"); lifestyle expert Danny Seo; children under the age of 10 run their own empires.
Willie Geist ("Sunday Today With Willie Geist"); Patina Miller ("Madam Secretary"); Harry takes over a mother's responsibilities while she goes off for a day of pampering and relaxation.
Katy Mixon ("American Housewife"); Harry has to guess a celebrity mystery guest; women empower others and make a difference in their communities.
Abigail Breslin ("Scream Queens"); Kelly Clarkson (book "River Rose and the Magical Lullaby"); chef Anne Burrell makes a gumbo dish.
Kristin Chenoweth performs; Rutina Wesley ("Queen Sugar"); women who empower others and make a difference in their community.
Anthony Anderson ("Blackish"); how to grow one's own business; a YouTube star performs experiments.
Actor J.B. Smoove; Broadway actress Jessie Mueller; kid scientist, "Science C" Chase Wiley.
Jessie Graff ("American Ninja Warrior"); Luke Evans ("Girl on the Train"); singer Lyle Lovett.
John Cena, Nikki and Brie Bella; kids showcase their talents; Harry spotlights women who are empowering others and making a difference in their communities.
Savannah Guthrie; mystery guest, Regis Philbin; Harry spotlights women who are empowering others and making a difference in their communities.
Singer Jason Derulo (album, "Platinum Hits"); Carol Burnett (book, "In Good Company"); inventor of the Nod Travel Pillow & Blanket.
Morgan Freeman ("Madam Secretary"); moms in need of advice turn to an expert for answers; Griffin Gluck and Alexa Nisenson ("Middle School: The Worst Years of My Life").
Ken Jeong ("Dr. Ken"); Grace Helbig, Mamrie Hart and Hannah Hart ("Dirty 30"); a woman invents a clothing line that allows children to design their own clothes.
Mariska Hargitay ("Law & Order: SVU"); Mike Colter ("Luke Cage").
Gabourey Sidibe ("Empire"); Kristen Bell ("The Good Place"); Harry takes over a mom's responsibilities for a day.
Whoopi Goldberg ("The View," "Strut"); 16-year-old Isaiah Cooper, the youngest African-American pilot to fly across America; women who empower others and make a difference in their communities.
Sofía Vergara ("Modern Family"); behind the scenes of "Empire"; women who empower others and make a difference in their communities.
Jada Pinkett Smith ("Gotham"); behind the scenes of "Empire" with Jussie Smollett; a 2-year-old drummer.
Actress Debra Messing; behind the scenes of "Empire" with Bryshere Y. Gray; a makeup artist can transform into favorite TV characters.
Tracee Ellis Ross ("blackish"); behind the scenes of "Empire" with Trai Byers; Maddie Ziegler ("So You Think You Can Dance").
Emma Roberts ("Scream Queens"); behind the scenes of "Empire" with Taraji P. Henson; Harry takes over a mom's responsibilities for the day.
Amy Adams ("Arrival"); comic Celeste Barber shares her parodies of celebrity posts; Harry drops in on a family of fans.
Renée Zellweger ("Bridget Jones's Baby"); Anthony Anderson ("blackish"); a marching-band keyboardist's fierce and intense facial expressions during performances have taken the internet by storm.
Singer Kim Burrell; Harry answers viewers' questions; furry, feathered and four-legged friends.
Terrence Howard ("Empire"): children join Harry for show-and-tell; women who empower others and make a difference in their communities.
Actress Sandra Bullock; cameos by Russell Crowe, Kristen Bell, Zooey Deschanel, Anthony Anderson, John Stamos and Taraji P. Henson; Harry takes over a mom's responsibilities for a day.
Dennis Quaid ('I Can Only Imagine'); chef Stuart O'Keeffe prepares beef stew; Irish step-dancing; kitchen essentials for would-be chefs; Harry has 60 seconds to make up a song.
Iyanla Vanzant ('Iyanla: Fix My Life'); trending fitness gadgets; 8-year-old Roxy Getter climbs the highest mountain in Africa.
Common skin-care misconceptions; a 91-year-old original Rosie the Riveter, who helped to build B-17s for Boeing more than 75 years ago; a former CIA agent reveals five personal-protection items; Harry has to make up a song.
Dorit Kemsley ('The Real Housewives of Beverly Hills'); Harry tries charcoal ice cream, the pizza pouch, tater mitts and eyebrow stamps; viral-video starring brothers tossing pizza; the founder of a nonprofit providing lunches for homeless people.
Benji Aflalo ('Alone Together'); Lauren Makk ('Home Made Simple') shows how to decorate the house for spring without breaking the bank; dance troupe Studio Bleu performs; magician Daniel Hernandez performs magic tricks.
David Duchovny ('The X-Files') performs; firefighters who caught children thrown from a burning building; boxer Laila Ali makes jambalaya.
Susan Kelechi Watson ('This Is Us'); barbecue pit masters feed large quantities of people when disaster strikes; Harry tries a cardio workout on a giant piano.
Dylan McDermott ('L.A. to Vegas'); a 13-year-old CEO; a 9-year-old company founder; chefs compete to see who can make the best Philly cheesesteak; the audience plays a game.
Lori Loughlin ('Fuller House,' 'When Calls the Heart'); Letitia Wright ('Black Panther'); Moe Cason ('BBQ Pitmasters') makes pork shoulder pulled pork; in-studio audience members compete in an event inspired by Olympic ski teams' outfits.
Charlamagne Tha God (author 'Black Privilege,' co-host 'The Breakfast Club'); the perfect hamburger; Tom Payne ('The Walking Dead'); in-studio audience members compete in an event inspired by Olympic figure-skating.
Neil deGrasse Tyson ('Star Talk'); a general contractor hopes to inspire more young women to join the construction industry; chef Frank Pinello makes pizza; in-studio audience members compete in an event inspired by Olympic curling.
Lamorne Morris ('New Girl,' 'Game Night'); Ali Rosen ('Potluck With Ali') prepares beef short ribs in the slow cooker; Honoka and Azita perform; Jacob Batalon ('Every Day'); in-studio audience members compete in an event inspired by skiing.
Aloe Blacc ('America's Musical Journey') performs; chef Eric Bromberg fries chicken; Stephanie Arne ('Mutual of Omaha's Wild Kingdom') presents a yak, an arctic fox and a groundhog; Francia Raisa ('grown-ish').
Letitia Wright ('Black Panther'); Rebecca Hall ('Permission'); magician Nate Staniforth performs; two Dallas chefs go head-to-head to see who can take the title of best chef from Dallas.
Daymond John ('Shark Tank,' book 'Rise and Grind'); Tonya Boyd, the FDNY's first African-American woman to become deputy chief; a former CIA officer reveals five items everyone needs to have in the car for survival; Harry makes up a song.
Danny Seo ('Naturally, Danny Seo') provides a Valentine's Day gift guide; model Lais Ribeiro; Harry surprises a couple with the ultimate honeymoon do-over; celebrity stylist Brad Goreski.
New Orleans Saints punter Thomas Morstead; crawfish macaroni-and-cheese and beignets; baton twirler Charmaine Robinson; Harry performs 'Here Comes the Big Parade.'
Sal Vulcano, Joe Gatto and James Murray ('Impractical Jokers'); romantic getaways and giveaways; Harry tests out Valentine's Day-themed products to see if they live up to their hype.
Alexandra Daddario ('When We First Met'); Angelica Hale performs; a couple adopts seven children; chef John Seymour prepares a tasty dish.
Luke Evans ('The Alienist'); a teen chef and activist prepares healthy and tasty dishes; Olympic figure-skating champion Tara Lipinski; Harry performs.
Rick Springfield and Harry entertain unsuspecting people on the elevator; Page Turner and DeRon Jenkins ('Flip or Flop: Nashville'); Jace Norman ('Henry Danger'); health and fitness expert Joey Thurman makes healthy, delicious dishes.
Wendell Pierce ('Suits'); two D.C. chefs compete; Brooklynn, Kaden and Nya Johnson perform; Jasmine Crowe, the founder of Goodr, which focuses on ending hunger and food waste by using technology to concentrate on transportation of food.
Rita Moreno ('One Day at a Time'); Harry talks to the founder of The Sato Project, the rescue organization from which he got the dog he is fostering; dating and relationship coach Bela Gandhi.
Willem Dafoe ('The Florida Project'); Jessie Graff ('American Ninja Warrior'); Tarana Burke, founder of the HashtagMeToo Movement; 'Top Chef' contestants Tyler Anderson, Joseph Flamm and Bruce Kalman.
Katie Lowes ('Scandal'); chef Joseph 'J.J.' Johnson; shopping smarter and saving money.
Beth Stern ('Kitten Bowl') brings rescue kittens; Kevin Pereira and Brooke Van Poppelen ('Hack My Life') share time-saving hacks; Matt Czuchry ('The Resident'); a child survives stage-four cancer and goes on to play at Carnegie Hall.
Andrew Zimmern ('Bizarre Foods With Andrew Zimmern'); Animal Planet's 'Puppy Bowl' ref Dan Schachner brings rescue pups; a 10-year-old gymnastics superstar; Harry makes up an instant love song; rebooting finance, diet and fitness resolutions.
Jason Jones and Natalie Zea ('The Detour'); an 11-year-old animal-calling champ; healthy alternatives to favorite meals; a 10-year-old starts an initiative that donates lunches to homeless people.
Entertainer Marie Osmond; triple chocolate cocoa-loco and white chocolate snickerdoodle cookies; Margot Bingham ('She's Gotta Have It'); extreme limbo.
Rob Riggle ('12 Strong'); a 7-year-old starts a non-profit organization; food hacker Todd Wilbur shares top-secret recipes; comic Esther Povitsky ('Alone Together').
Fitness expert Jillian Michaels busts diet and exercise rumors; hosting a grown-up game night; Lisa Lillien ('Hungry Girl') shows how to swap in healthier options for favorite party dishes.
Anne Heche ('The Brave'); a 12-year-old starts a non-profit organization; Alex Roe ('Forever My Girl'); unusual ice cream flavors.
Matt Wright ('Monster Croc Wrangler') brings an alligator, a python, a wallaby and a cockatoo; chef Stuart O'Keeffe makes chicken stew and beef-and-broccoli crock pot stew; Jamie Lee ('Crashing'); Harry tries Kendo and other fitness crazes.