| Person | Type | Job | Role(s) |
|---|---|---|---|
 Russell Norman | Crew | Directing | Director |
 "Weird Al" Yankovic | Cast | Actor | Self - Performer |
 Brad Garrett | Cast | Actor | Self |
 Carol Burnett | Cast | Actress | Self |
 Cedric the Entertainer | Cast | Actor | Self |
 Craig Robinson | Cast | Actor | Self |
 David Copperfield | Cast | Actor | Self |
 Dick Van Dyke | Cast | Actor | Self |
 Jane Seymour | Cast | Actress | Self |
 Jason Alexander | Cast | Actor | Self - Performer |
 Jenny McCarthy-Wahlberg | Cast | Actress | Self |
 John Lithgow | Cast | Actor | Self |
 Judd Apatow | Cast | Actor | Self |
 Julie Andrews | Cast | Actress | Self |
 Ken Jeong | Cast | Actor | Self |
 Lin-Manuel Miranda | Cast | Actor | Self |
 Mark Hamill | Cast | Actor | Self |
 Martin Short | Cast | Actor | Self |
 Mary Steenburgen | Cast | Actress | Self |
 Mel Brooks | Cast | Actor | Self |
 Rob Reiner | Cast | Actor | Self |
 Roma Downey | Cast | Actress | Self |
 Rufus Wainwright | Cast | Actor | Self - Performer |
 Stanley Tucci | Cast | Actor | Self |
 Stephen Colbert | Cast | Actor | Self |
 Ted Danson | Cast | Actor | Self |
 Tichina Arnold | Cast | Actress | Self - Performer |
 Tony Hawk | Cast | Actor | Self |
 William Shatner | Cast | Actor | Self |
 Darren Criss | Cast | Actor | Self |
 Harry Shum Jr. | Cast | Actor | Self |
 Rita Ora | Cast | Actress | Self - Performer |
 Amber Riley | Cast | Actress | Self - Performer |
 David Archuleta | Cast | Actor | Self |
 Derek Hough | Cast | Actor | Self |
 Skylar Astin | Cast | Actor | Self - Performer |
 Beth Behrs | Cast | Actress | Self - Performer |
JoJo Siwa | Cast | Actress | Self - Performer |
 Amanda Kloots | Cast | Actress | Self - Performer |
| Person | Type | Job | Role(s) |
