| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 James Corden | Crew | Creator | Creator | |
 AJ McLean | Cast | Actor | Self [Backstreet Boys] | 1 |
 Adina Porter | Cast | Actress | Self | 1 |
 Anthony Anderson | Cast | Actor | Self | 1 |
 Boy George | Cast | Actor | Self | 1 |
 Brad Williams | Cast | Actor | Self | 1 |
 Brian Littrell | Cast | Actor | Self [Backstreet Boys] | 1 |
 Cedric the Entertainer | Cast | Actor | Self | 1 |
 Chad L. Coleman | Cast | Actor | Self | 1 |
 Chris Jericho | Cast | Actor | Self | 1 |
 Christina Milian | Cast | Actress | Self | 1 |
 Danielle Fishel | Cast | Actress | Self | 1 |
 David Arquette | Cast | Actor | Self | 1 |
 David Faustino | Cast | Actor | Self | 1 |
 Eddie Kaye Thomas | Cast | Actor | Self | 1 |
 Gabriel Iglesias | Cast | Actor | Self | 1 |
 Halle Berry | Cast | Actress | Self | 1 |
 Howie Dorough | Cast | Actor | Self [Backstreet Boys] | 1 |
 Isaac Hanson | Cast | Actor | Self [Hanson] | 1 |
James Corden | Cast | Actor | Self | 3 |
 James Van Der Beek | Cast | Actor | Self | 1 |
 Jason Biggs | Cast | Actor | Self | 1 |
 Jason Mewes | Cast | Actor | Self | 1 |
 Jerry Springer | Cast | Actor | Self | 1 |
 Jesse Tyler Ferguson | Cast | Actor | Self | 1 |
 Jodie Sweetin | Cast | Actress | Self | 1 |
 Joey Fatone | Cast | Actor | Self | 1 |
 Joey Lawrence | Cast | Actor | Self | 1 |
 Joey McIntyre | Cast | Actor | Self | 1 |
 Jon Cryer | Cast | Actor | Self | 1 |
 Jonathan Lipnicki | Cast | Actor | Self | 1 |
 Joseph Gordon-Levitt | Cast | Actor | Self | 1 |
 Josh Holloway | Cast | Actor | Self | 1 |
 Kat Graham | Cast | Actress | Self | 1 |
 Ken Jeong | Cast | Actor | Self | 1 |
 Kenny G | Cast | Actor | Self | 1 |
 Kevin Richardson | Cast | Actor | Self [Backstreet Boys] | 1 |
 Kevin Smith | Cast | Actor | Self | 1 |
 La La Anthony | Cast | Actress | Self | 1 |
 Luis Guzmán | Cast | Actor | Self | 1 |
 Mark McGrath | Cast | Actor | Self | 1 |
 Marlon Wayans | Cast | Actor | Self | 1 |
 Matthew Lillard | Cast | Actor | Self | 1 |
 Mayim Bialik | Cast | Actress | Self | 1 |
 Mel B | Cast | Actress | Self | 1 |
 Method Man | Cast | Actor | Self - Co-Host | 31 |
 Michael Kenneth Williams | Cast | Actor | Self | 1 |
 Michael Bivins | Cast | Actor | Self [Bell Biv DeVoe] | 1 |
 Molly Ringwald | Cast | Actress | Self | 1 |
 Nathan Morris | Cast | Actor | Self [Boyz II Men] | 1 |
 Nick Carter | Cast | Actor | Self [Backstreet Boys] | 1 |
 Nick Lachey | Cast | Actor | Self | 1 |
 Nicole Scherzinger | Cast | Actress | Self | 1 |
 Niecy Nash | Cast | Actress | Self | 1 |
 Padma Lakshmi | Cast | Actress | Self | 1 |
 Raven-Symoné | Cast | Actress | Self | 1 |
 Ricki Lake | Cast | Actress | Self | 1 |
 Seth Rogen | Cast | Actor | Self | 1 |
 Shaggy | Cast | Actor | Self | 1 |
 Shania Twain | Cast | Actress | Self | 1 |
 Shaquille O'Neal | Cast | Actor | Self | 1 |
 Shawn Stockman | Cast | Actor | Self [Boyz II Men] | 1 |
 Taran Killam | Cast | Actor | Self | 1 |
 Taye Diggs | Cast | Actor | Self | 1 |
 Taylor Hanson | Cast | Actor | Self [Hanson] | 1 |
 Terry Crews | Cast | Actor | Self | 1 |
 Tony Hale | Cast | Actor | Self | 1 |
 Usher | Cast | Actor | Self | 1 |
 Wanya Morris | Cast | Actor | Self [Boyz II Men] | 1 |
 Wayne Brady | Cast | Actor | Self | 1 |
 Zac Hanson | Cast | Actor | Self [Hanson] | 1 |
 Chrissy Metz | Cast | Actress | Self | 1 |
 Darren Criss | Cast | Actor | Self | 1 |
 Gina Rodriguez | Cast | Actress | Self | 1 |
 Jack Osbourne | Cast | Actor | Self | 1 |
 Jay DeMarcus | Cast | Actor | Self [Rascal Flatts] | 1 |
 Joe Don Rooney | Cast | Actor | Self [Rascal Flatts] | 1 |
 Kelly Osbourne | Cast | Actress | Self | 1 |
 Laila Ali | Cast | Actress | Self | 1 |
 Laverne Cox | Cast | Actress | Self | 1 |
 Mark Cuban | Cast | Actor | Self | 1 |
 Mike Colter | Cast | Actor | Self | 1 |
 Ne-Yo | Cast | Actor | Self | 1 |
 Nicole Richie | Cast | Actress | Self | 1 |
 Phil McGraw | Cast | Actor | Self | 1 |
 Randall Park | Cast | Actor | Self | 1 |
 Randy Jackson | Cast | Actor | Self | 1 |
 Rob Riggle | Cast | Actor | Self | 1 |
 Vanessa Hudgens | Cast | Actress | Self | 1 |
 Austin Watson | Cast | Actor | Self - Xavier Woods [The New Day, WWE] | 1 |
 Brian Tyree Henry | Cast | Actor | Self | 1 |
 C.J. Perry Barnyashev | Cast | Actress | Self | 1 |
 Kofi Sarkodie-Mensah | Cast | Actor | Self - Kofi Kingston [The New Day, WWE] | 1 |
 Kunal Nayyar | Cast | Actor | Self | 1 |
 Lil Rel Howery | Cast | Actor | Self | 1 |
 Nikki Glaser | Cast | Actress | Self | 1 |
 Ron Funches | Cast | Actor | Self | 1 |
 Chandler Riggs | Cast | Actor | Self | 1 |
 Jason Derulo | Cast | Actor | Self | 1 |
 Jason Mitchell | Cast | Actor | Self | 1 |
 Jay Pharoah | Cast | Actor | Self | 1 |
 Liam Payne | Cast | Actor | Self | 1 |
 Rob Gronkowski | Cast | Actor | Self | 1 |
 Sam Richardson | Cast | Actor | Self | 1 |
 Shameik Moore | Cast | Actor | Self | 1 |
 Timothy Simons | Cast | Actor | Self | 1 |
 Trevor Jackson | Cast | Actor | Self | 1 |
 Ettore Ewen | Cast | Actor | Self - Big E [The New Day, WWE] | 1 |
 Gus Kenworthy | Cast | Actor | Self | 1 |
 Charli XCX | Cast | Actress | Self | 1 |
 Karrueche Tran | Cast | Actress | Self | 1 |
 Kevin Olusola | Cast | Actor | Self [Pentatonix] | 1 |
 Miroslav Barnyashev | Cast | Actor | Self - Rusev | 1 |
 Mitch Grassi | Cast | Actor | Self [Pentatonix] | 1 |
 Scott Hoying | Cast | Actor | Self [Pentatonix] | 1 |
 Shawn Mendes | Cast | Actor | Self | 1 |
 Gaten Matarazzo | Cast | Actor | Self | 1 |
 Ashley Tisdale | Cast | Actress | Self | 1 |
 T-Pain | Cast | Actor | Self | 1 |
 Luis Fonsi | Cast | Actor | Self | 1 |
 Meghan Trainor | Cast | Actress | Self | 1 |
 Kirstin Maldonado | Cast | Actress | Self [Pentatonix] | 1 |
 Ashlee Simpson | Cast | Actress | Self | 1 |
 Michael Bennett | Cast | Actor | Self | 1 |
 Jake Owen | Cast | Self | 1 | |
 Ronnie DeVoe | Cast | Actor | Self [Bell Biv DeVoe] | 1 |
 Ricky Bell | Cast | Actor | Self [Bell Biv DeVoe] | 1 |
 Tove Lo | Cast | Actress | Self | 1 |
 Richard Marx | Cast | Actor | Self | 1 |
 Lindsey Vonn | Cast | Actress | Self | 1 |
 Hailey Bieber | Cast | Actress | Self - Co-Host | 31 |
 Matthew Sallee | Cast | Actor | Self [Pentatonix] | 1 |
 Odell Beckham Jr. | Cast | Actor | Self | 1 |
 Charlie Puth | Cast | Actor | Self | 1 |
 Gary LeVox | Cast | Actor | Self [Rascal Flatts] | 1 |
 Lonzo Ball | Cast | Actor | Self | 1 |
| Person | Type | Job | Role(s) | Episodes |
