Preston Foster

Det. Bill Crane

Patricia Ellis

Mrs. Sam Taylor

Frank Jenks

Doc Williams

Thomas E. Jackson

Police Lieutenant Strom

Bill Elliott

Chauncey Courtland

Roland Drew

Sam Taylor

Barbara Pepper

Kay Renshaw

Joe Downing

Steve Collins

Archie Robbins

Frankie French

Al Hill

Spitzy

Morgan Wallace

Inspector Layman

Brian Burke

Johnson

Donald Kerr

Greening

Don Brodie

Taxi Driver

Rollo Lloyd

Coroner

Gordon Hart

Colonel Black

Byron Foulger

Al Horn (uncredited)

Eddie Hall

Spectator at the Hearing (uncredited)

Peter Lind Hayes

Elevator Operator (uncredited)

Stanley Price

French's Henchman (uncredited)

Minerva Urecal

Mrs. Horn (uncredited)

The Westland Case

The Lady in the Morgue

The Last Warning