Rob Reiner (Marty DiBergi)
Michael McKean (David St. Hubbins)
Christopher Guest (Nigel Tufnel)
Harry Shearer (Derek Smalls)
R.J. Parnell (Mick Shrimpton)
Tony Hendra (Ian Faith)
Danny Kortchmar (Ronnie Pudding)
George McDaniel (Southern Rock Promoter)
Patrick Maher (New York M.C.)
Charles Levin (Disc & Dat Manager)
Andrew J. Lederer (Student Promoter)
Julie Payne (Mime Waitress)
Brinke Stevens (Girlfriend (uncredited))
Zane Buzby (Rolling Stone Reporter)
Robin Menken (Angelo's Associate)
Paul Shaffer (Artie Fufkin)
Daniel Rodgers (Little Druid)
Dana Carvey (Mime Waitress)
Russ Kunkel (Eric "Stumpy Joe" Childs)
Fred Asparagus (Joe "Mama" Besser)
Gloria E. Gifford (Airport Security Official)
Lara Cody (Fame Groupy)
Archie Hahn III (Room Service Guy)
Sandy Helberg (Angelo DiMentibello)
Jean Cromie (Ethereal Fan)
Robert Bauer (Moke)
Anjelica Huston (Polly Deutsch)
Wonderful Smith (Janitor)
J.J. Barry (Rack Jobber)
Joyce Hyser (Belinda)
Vicki Blue (Cindy)
Paul Benedict (Tucker "Smithy" Brown)
Patrick Macnee (Sir Denis Eton-Hogg)
Billy Crystal (Morty the Mime)
Fred Willard (Lt. Hookstratten)
Ed Begley, Jr. (John "Stumpy" Pepys)
Howard Hesseman (Terry Ladd)
David Kaff (Ian Faith)
David Kaff (Viv Savage)
Bruno Kirby (Tommy Pischedda)
June Chadwick (Jeanine Pettibone)
Fran Drescher (Bobbi Flekman)