Self

Dick Van Dyke

Self - Performer

Tichina Arnold

Self - Performer

Rufus Wainwright

Self

Julie Andrews

Self

Lin-Manuel Miranda

Self

Judd Apatow

Self

David Archuleta

Self

Mel Brooks

Self

Carol Burnett

Self

Cedric the Entertainer

Self

Stephen Colbert

Self

Derek Hough

Self - Performer

Beth Behrs

Self

David Copperfield

Self

Darren Criss

Self

Ted Danson

Self

Roma Downey

Self

Brad Garrett

Self

Mark Hamill

Self

Jenny McCarthy-Wahlberg

Self

Tony Hawk

Self

Ken Jeong

Self

John Lithgow

Self - Performer

JoJo Siwa

Self

Rob Reiner

Self

Craig Robinson

Self

Jane Seymour

Self

William Shatner

Self

Martin Short

Self

Harry Shum Jr.

Self

Mary Steenburgen

Self

Stanley Tucci

Self - Performer

Jason Alexander

Self - Performer

"Weird Al" Yankovic

Self - Performer

Amanda Kloots

Self - Performer

Skylar Astin

Self - Performer

Amber Riley

Self - Performer

Rita Ora

Director

Russell Norman