Peter Kuban
Vittorio Gassman
Maggie Summers
Gloria Grahame
Inspector Toomey / Narrator
Michael Fox
Monroe, the Taxi Driver (as Ned Booth)
Nesdon Booth
Zelda - Fat Woman
Kathleen Freeman
Girl friend
Juney Ellis
Musician
Jack Teagarden
Himself - Band Leader
Shorty Rogers
Nancy
Ann Robinson
Inspector Bailey
Douglas Spencer
Tanya aka Bella Zakoyla
Robin Raymond
Tom
Jerry Paris
Mrs. Hinckley - Landlady
Elizabeth Slifer
Eddie Hinckley
Richard Reeves
Freddie Zakoyla (as Joseph Turkel)
Joe Turkel
Mrs. Zakoyla (as Else Neft)
Else Neft
Music
Leith Stevens
Art Direction
Serge Krizman
Producer
Ivan Tors
Screenplay
Director
Maxwell Shane
Director of Photography
Joseph F. Biroc
Editor
Stanley Frazen
Production Design
George Van Marter
Sound
William A. Wilmarth
Herbert L. Strock
Special Effects
David Commons
Jack Rabin
Supervising Editor
Production Manager
C.M. Florance