Peter Lorre

Stephen Danel

Rochelle Hudson

Lorraine Danel

Robert Wilcox

Mark Sheldon

Don Beddoe

Brand

George E. Stone

Siggy

Kenneth MacDonald

Doctor Rosener

Charles Middleton

Captain Cort

Stanley Brown

Eddie

Earl Gunn

Mitchell

Sam Ash

Ames - Parolee (uncredited)

Raymond Bailey

Mystery Killer (uncredited)

Trevor Bardette

District Attorney (uncredited)

Bruce Bennett

Hazen - Guard (uncredited)

Bernie Breakston

Townsend (uncredited)

Donald Douglas

Department of Justice Official

Charles Barton