Candy Christian
Ewa Aulin
Hunchback juggler
Charles Aznavour
Zero
Sugar Ray Robinson
Nurse Bullock
Anita Pallenberg
Silvia Fontegliulo
Lea Padovani
Lolita
Florinda Bolkan
Marquita
Marilù Tolo
The Big Guy
Umberto Orsini
Jonathan J. John
Enrico Maria Salerno
Harold
Neal Noorlag
Al Pappone
Enzo Fiermonte
Luther
Peter Dane
Grindl
Marlon Brando
Miss Quinby
Peggy Nathan
Mobster
Anthony Foutz
Tom Keyes
Dr. Harris
Mark Salvage
Girl
Micaela Pignatelli
The Cop
Joey Forman
The Sergeant
Fabian Dean
Film Director (uncredited)
Christian Marquand
Mental Patient (uncredited)
Buck Henry
Woman (uncredited)
Judith Malina
MacPhisto
Richard Burton
Hippie (uncredited)
Julian Beck
Max (uncredited)
Romano Targa
Dr. A.B. Krankheit
James Coburn
Dr. Arnold Dunlap
John Huston
Gen. R.A. Smight
Walter Matthau
Emmanuel
Ringo Starr
T.M. Christian / Jack Christian
John Astin
Livia
Elsa Martinelli
Novel
Terry Southern
Visual Effects
Douglas Trumbull
Director
Screenplay
Art Direction
Dean Tavoularis
Director of Photography
Giuseppe Rotunno
Original Music Composer
Dave Grusin
Mason Hoffenberg
Executive Producer
Selig J. Seligman
Producer
Robert Haggiag
Peter Zoref
Hairstylist
Elda Magnanti
Editor
Giancarlo Cappelli
Makeup Artist
Giuliano Laurenti
Harold E. Wellman
Costume Design
Enrico Sabbatini
Set Decoration
George R. Nelson
Special Effects
Augie Lohman
Still Photographer
Larry Shaw