Frank Zappa
Member of Mothers of Invention (uncredited)
Mark Volman
Member of Mothers of Invention
Howard Kaylan
Member of Mothers of Invention
Ian Underwood
Member of Mothers of Invention
Aynsley Dunbar
Member of Mothers of Invention
George Duke
Member of Mothers of Invention
Theodore Bikel
Rance Muhammitz / Dave
Keith Moon
Hot Nun
Ringo Starr
Larry the Dwarf / Frank Zappa
Janet Neville-Ferguson
Groupie #1 (Janet Ferguson)
Lucy Offerall
Groupie #2 (Lucy)
Jimmy Carl Black
Lonesome Cowboy Burt
Martin Lickert
Jeff
Dick Barber
Bif Debris - The Vacuum Cleaner
Don Preston
Don
Pamela Des Barres
Interviewer (as Pamela Miller)
Ruth Underwood
Fake Drummer
Judy Gridley
Chorus Leader
Jim Pons
Member of Mothers of Invention (uncredited)
Euclid James 'Motorhead' Sherwood
Motorhead Sherwood (uncredited)