Frank Zappa

Member of Mothers of Invention (uncredited)

Acting

Mark Volman

Member of Mothers of Invention

Sound

Howard Kaylan

Member of Mothers of Invention

Sound

Ian Underwood

Member of Mothers of Invention

Sound

Aynsley Dunbar

Member of Mothers of Invention

Acting

George Duke

Member of Mothers of Invention

Acting

Theodore Bikel

Rance Muhammitz / Dave

Acting

Keith Moon

Hot Nun

Acting

Ringo Starr

Larry the Dwarf / Frank Zappa

Acting

Janet Neville-Ferguson

Groupie #1 (Janet Ferguson)

Acting

Lucy Offerall

Groupie #2 (Lucy)

Acting

Jimmy Carl Black

Lonesome Cowboy Burt

Acting

Martin Lickert

Jeff

Acting

Dick Barber

Bif Debris - The Vacuum Cleaner

Acting

Don Preston

Don

Sound

Pamela Des Barres

Interviewer (as Pamela Miller)

Acting

Ruth Underwood

Fake Drummer

Acting

Judy Gridley

Chorus Leader

Acting

Jim Pons

Member of Mothers of Invention (uncredited)

Acting

Euclid James 'Motorhead' Sherwood

Motorhead Sherwood (uncredited)

Acting