John Howard Tracy
Det. Simon Shayne
Pat Peterson
Lt. Bruce Gunning
Olga Valerie Lewis
Wilbur K. Grossett
Turnip
Claude Duffy (as Robert Watson)
Peter Hayden
Detective Bob
Dr. Seymour
Office boy
Mac (the waiter)
Mrs. Beresford
Don Holden
Department Store Shopper
Detective Franks