Jonathan Haze
Seymour Krelborn
Jackie Joseph
Audrey Fulquard
Mel Welles
Gravis Mushnick
Dick Miller
Burson Fouch
Myrtle Vail
Winifred Krelborn
Karyn Kupcinet
Shirley
Toby Michaels
Teenage Girl
Leola Wendorff
Siddie Shiva
Lynn Storey
Mrs. Hortense Feuchtwanger
Wally Campo
Det. Sgt. Joe Fink / Narrator
Jack Nicholson
Wilbur Force
Jack Warford
Det. Frank Stoolie
Meri Welles
Leonora Clyde
John Herman Shaner
Dr. Phoebus Farb
Dodie Drake
Waitress
Charles B. Griffith
Screaming Patient/ Audrey Junior (voice) / Burglar (uncredited)
Frank Mills
Man in Crowd Outside Shop (uncredited)
Jack Griffin
Drunk (uncredited)
Robert Coogan
Tramp (uncredited)