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

Wally Campo

Det. Sgt. Joe Fink / Narrator

Jack Nicholson

Wilbur Force

Charles B. Griffith

Screaming Patient/ Audrey Junior (voice) / Burglar (uncredited)