Watch What Happens Live with Andy Cohen — Season 15

Show host Tyra Banks; actor NeNe Leakes.

Political commentator S.E. Cupp; actor Scheana Marie.

Restaurateur Lisa Vanderpump.

TV personalities Melissa Gorga and Teresa Giudice.

Actor Liam Neeson; actor Taraji P. Henson.

Celebrity trainer Bob Harper; television personality Sherée Whitfield.

Television personalities Brittany Cartwright and Ariana Madix.

Actor Molly Shannon; television personality Kyle Richards.

Actor 50 Cent; actor Gerard Butler.

Actors Jane Fonda and Lily Tomlin ("Grace and Frankie").

Rapper/entrepreneur Sean "Diddy" Combs.

Television host Samantha Bee; journalist Dan Rather.

Actress Lisa Rinna; television personality Tabatha Coffey.

Singer Belinda Carlisle; performer Sandra Bernhard.

Singer-actress Kandi Burruss; television personality Bevy Smith.

TV personalities Kristen Doute and Quad Webb-Lunceford.

TV personality Carson Kressley; actress Dakota Fanning.

Actress Sarah Jessica Parker.

Actor Joel Kinnaman; model Chrissy Teigen.

TV personalities Tom Schwartz and Katie Maloney-Schwartz ("Vanderpump Rules").

TV personalities Kyle Richards and Bethenny Frankel.

Actresses Cecily Strong and Whitney Cummings.

Talk show host Maury Povich; journalist Connie Chung.

Actress Amber Tamblyn; television personality Porsha Williams.

Singer Jake Shears; television personality Stassi Schroeder.

Television personalities Teddi Mellencamp and Camille Grammer.

Model Nina Agdal; "Top Chef" host Padma Lakshmi.

Dr. Heavenly Kimes and Dr. Simone Whitmore ("Married to Medicine").

Comic Phoebe Robinson; TV personality Cynthia Bailey.

TV personalities Lala Kent and Carl Radke.

Actress Katy Mixon; TV personality Dorit Kemsley.

Actress Brooke Shields; news commentator Van Jones.

TV personalities Toya Bush-Harris and Contessa Metcalfe.

TV personalities NeNe Leaks and Marlo Hampton.

TV personality James Kennedy; TV personality Lauren Wirkus.

TV show host Meghan McCain; TV personality Lisa Rinna.

Actor Dennis Quaid; actor Patton Oswalt.

Actress Jennifer Lawrence.

TV personalities Scheana Shay and Ariana Madix ("Vanderpump Rules").

TV personality Brandi Glanville; figure skater Adam Rippon.

Actress-singer Bernadette Peters; actor Victor Garber.

Actor David Oyelowo; actress Elizabeth Hurley.

Actress-model Eva Marcille; TV host and radio personality Rickey Smiley.

TV personalities Tom Schwartz and Tom Sandoval ("Vanderpump Rules").

Dorit Kemsley & Jerry O'Connell joins host Andy Cohen.

TV personality Kandi Burruss; celebrity chef Gina Neely.

Actress Angela Bassett; actor Burt Reynolds.

TV personality Kim Zolciak-Biermann; singer Iggy Azalea.

TV personalities Stassi Schroeder and Brittany Cartwright.

Singer and TV personality Erika Jayne; drag queen and TV host RuPaul.

Singers Rod Stewart and Cyndi Lauper.

Comic-actors Bill Hader and Jay Pharoah.

TV personality Sheree Whitfield; hair stylist Miss Lawrence.

Actor Alan Cumming; actor Jeff Goldblum.

Actresses-podcasters Casey Wilson and Danielle Schneider.

Actress Drew Barrymore; actor Timothy Olyphant.

Actress Chrissy Metz; actress Sara Gilbert.

TV personality Kenya Moore; actor Michael Rapaport.

TV personality Kristen Doute; actor Paul Adelstein.

The cast of "Summer House."

TV personality Luann de Lesseps; actress-singer Jackie Hoffman.

Actors Keri Russell and Matthew Rhys ("The Americans").

TV personality NeNe Leakes; actress-writer Lena Waithe.

Actor Milo Ventimiglia; singer Ricky Martin.

The cast of "The Real Housewives of Beverly Hills."

Dorinda Medley and the Night of 31 Doorbells.

Actress Anna Faris; rapper Snoop Dogg.

TV personality Gizelle Bryant; actress Wendi McLendon-Covey.

TV personality Tom Sandoval; actress Christina Hendricks.

TV show host Kelly Ripa and actor Mark Consuelos.

TV personality Carole Radziwill; actress Ali Wentworth.

TV personality Cameran Eubanks; actress Inbar Lavi.

Music artists Sting and Shaggy.

Actor Jax Taylor; actor Shep Rose.

Journalist Katie Couric; attorney and television host Geraldo Rivera.

TV personality Bethenny Frankel; actress Lea Michele.

Actor Sebastian Stan; actress Priyanka Chopra.

Andy Cohen interviews Karen Huger and Candiace Dillard.

Actress Charlize Theron; actor Ron Livingston.

Model Winnie Harlow; celebrity fashion stylist Brad Goreski.

TV personality Ryan Serhant; Ramona Singer.

Actress Carol Burnett.

Actress Monique Samuels; actress Gabrielle Union.

Actor Oliver Hudson; actress Rachel Bloom.

Actress Carol Kane; singer Jimmy Buffett.

Andy Cohen interviews Sonja Morgan & Keith Hernandez.

Actress Candice Bergen; actress Mary Steenburgen; actor Don Johnson.

Comic Retta; actress Ashley Darby.

Actor Craig Conover; actress Kathryn Calhoun Dennis.

"Below Deck Mediterranean" stars Hannah Ferrier and chef Adam Glick.

Actress Kyle Richards; actor Simon Baker.

Actress Laurie Metcalf; actress Jessica Walter

Actress Gillian Jacobs; actress Vanessa Bayer; actress Phoebe Robinson.

John Mayer guest hosts a celebration for Andy's birthday.

Actor Tituss Burgess; actress Kelly Preston.

Actor Fredrik Eklund; Captain Sandy Yawn.

Actress Leslie Bibb; journalist Carole Radziwill.

Andy Cohen interviews Matt Bomer & Andrew Rannells.

Andy Cohen interviews Ginuwine and Robyn Dixon.

Andy Cohen interviews Alfre Woodard and Mike Colter.

Andy Cohen interviews Alison Brie and Billy Porter.

Andy Cohen interviews Tinsley Mortimer and Zoey Deutch.

Andy Cohen interviews Naomie Olindo and Austen Kroll.

"Queer Eye" experts Antoni Porowski, Tan France, Karamo Brown, Jonathan Van Ness and Bobby Berk.

Singer Bebe Rexha; singer Bryan Adams.

Fashion designer Rachel Zoe; actor Conrad Empson.

TV personalities Ramona Singer and Willie Geist.

Actress Patricia Clarkson; actress Elizabeth Perkins.

Andy Cohen interviews Kandi Burruss and Aisha Tyler.

Andy Cohen interviews Shep Rose and Dale Earnhardt Jr.

Andy Cohen interviews Brooke Laughton and Jane Krakowski.

Andy Cohen interviews Sonja Morgan and Kristin Cavallari.

Dwayne Johnson joins host Andy Cohen.

Andy Cohen interviews Ashley Darby and D.l. Hughley.

Andy Cohen interviews Shannon Beador and Tamra Judge.

Actress Liv Tyler; actress Neve Campbell.

Actress Kristin Chenoweth; actress Tinsley Mortimer.

Andy Cohen interviews Charlamagne Tha God & Joel Mchale.

Actress Monique Samuels; actress Sherri Shepherd.

Actress Betty Gilpin; actress Kelly Dodd.

Actor João Franco; actor Colin Macy-O'Toole.

TV personality Ramona Singer; TV personality Meghan McCain.

Actress Rosanna Arquette; actress Laverne Cox.

TV personality Charrisse Jackson Jordan; TV personality Robyn Dixon.

TV personality Vicki Gunvalson; actress Chloe Grace Moretz.

Andy Cohen interviews Hannah Ferrier, Jamie Jason, & Kasey Cohen.

TV personality Dorinda Medley; fashion designer Isaac Mizrahi.

"Shahs of Sunset" stars Reza Farahan and Mercedes Javid.

TV personalities Gizelle Bryant and Brandi Redmond.

TV personality Emily Simpson; actress Brooklyn Decker.

Actress Ann Dowd; journalist Jake Tapper.

TV personality Sonja Morgan; actor Michael Rapaport.

TV personalities Golnesa Gharachedaghi and Mike Shouhed.

Andy Cohen hosts guest Stephen Colbert.

Singer Ashlee Simpson; actor Evan Ross.

TV personality LuAnn de Lesseps and actor Jerry O'Connell.

Singer Troye Sivan; actress Laura Linney.

TV personalities Quad Webb-Lunceford and Dr. Jackie Walters.

TV personality Gina Kirschenheiter; TV personality Dr. Oz.

Cast members from "Below Deck Mediterranean."

TV personalities Cary Deuber and Stephanie Hollman.

TV personality Mercedes Javid; actor Michael Rapaport.

TV personality Mariah Huq; actress Vivica A. Fox.

TV personality Vicki Gunvalson; TV host S.E. Cupp.

Journalists Hoda Kotb and Savannah Guthrie.

Actress LeeAnne Locken; actor Brendan Schaub.

Actress Queen Latifah; singer Josh Groban.

TV show host Jerry O'Connell; TV personality Toya Bush-Harris.

Model Chrissy Teigen; TV personality Kelly Dodd.

Actor Tom Arnold; TV personality D'Andra Simmons.

Model Naomi Campbell; actor Cuba Gooding Jr.

Actor Terrence Howard; model Elle Macpherson.

Andy Cohen interviews Dr. Simone Whitmore & Dave Holmes.

Designer Jeff Lewis; reality star Shannon Beador.

Reality stars Kate Chastain and Captain Lee Rosbach from "Below Deck."

Actresses Candice Bergen and Faith Ford of "Murphy Brown."

Actress Debra Messing; actress Molly Shannon.

Reality TV personality Dr. Heavenly Kimes; actor Taye Diggs.

TV personality Tamra Judge; model Behati Prinsloo.

Actors K.J. Apa, Lili Reinhart, Luke Perry, and Mädchen Amick ("Riverdale").

Actress Lena Dunham; actress Maggie Gyllenhaal.

TV personalities Reza Farahan and Destiney Rose.

TV personality Quad Webb-Lunceford; singer Tamar Braxton.

TV personality Heather Dubrow; actor Anthony Atamanuik.

Actress Jane Curtin; actor Harvey Fierstein.

TV personality Kameron Westcott; TV personality Carson Kressley.

Actress Busy Philipps; model Ashley Graham.

Rapper T-Pain; TV producer Mariah Huq.

Actress Mary McCormack; TV personality Gina Kirschenheiter.

Actress Juliette Lewis; actress Ricki Lake.

Actress Ellie Kemper; actress Stockard Channing.

TV personalities Mike Shouhed and Nema Vand.

TV personality Dr. Jackie Walters; actress Kristin Chenoweth.

Real Housewives Awards: TV personality Kelly Dodd; TV personality Brandi Redmond.

Actress Amanda Peet; actress Debra Winger.

TV show host Seth Myers.

Filmmaker Tyler Perry; actress Whoopi Goldberg.

Andy Cohen interviews NeNe Leakes and Phoebe Robinson.

Andy Cohen interviews Vicki Gunvalson and Leslie Grossman.

Andy Cohen interviews Teresa Giudice and Dolores Catania.

Guest Sarah Jessica Parker joins host Andy Cohen.

TV personality Kandi Burruss; actress Keke Palmer.

Actress Jenni Pulos; TV personality Emily Simpson.

Actor Eddie Redmayne; actress Zoë Kravitz.

TV personality Margaret Josephs; actress Bridget Everett.

Singer Shania Twain; actress Patricia Arquette.

TV personalities Porsha Williams and Miss Lawrence.

Singer Mariah Carey joins host Andy Cohen.

Actress Connie Britton ("Dirty John").

Actor Sean Hayes; actress Tatiana Maslany.

TV personalities Kate Chastain and Josiah Carter.

TV personality Melissa Gorga; TV personality LeeAnne Locken.

TV personality Tyra Banks; actress Megan Fox.

Actress Eva Marcille; actress Sandra Bernhard.

TV personalities Jax Taylor and Brittany Cartwright.

TV personalities Ross Inia, Captain Lee and Rhylee Gerber.

TV personalities Jennifer Aydin and Jackie Goldschneider.

Actor Kenan Thompson; singer Dua Lipa.

Singers Tameka "Tiny" Harris and Kandi Burruss.

Actress Julia Garner; TV personality Stassi Schroeder.

TV personality Ashton Pienaar; actress Jenny McCarthy.

Singer Lenny Kravitz; journalist Gayle King.

Actress Jennifer Lopez; actress Leah Remini.

TV personality Cynthia Bailey; journalist Anderson Cooper.

TV personality Lala Kent; actor Adam Pally.

Actress Natalie Portman; actress Leslie Mann.

Actress Saoirse Ronan; actor Lucas Hedges.

TV personalities Teresa Giudice, Kyle Richards, Bethenny Frankel, Ramona Singer, Vicki Gunvalson, and NeNe Leakes.

TV personalities Teresa Giudice, Kyle Richards, Bethenny Frankel, Ramona Singer, Vicki Gunvalson, and NeNe Leakes.