Investigation criminelle

Edward G. Robinson

— Capt. 'Barnie' Barnaby

Paulette Goddard

— Mona Ross

K.T. Stevens

— Ginny

Porter Hall

— Jack Hartrampf

Adam Williams

— Marty Kusalich

Edward Binns

— Al Barkis

Barry Kelley

— Dwight Foreman

Jay Adler

— Frankie Pierce

Mary Ellen Kay

— Carol Lawson

Joan Vohs

— Vickie Webb

Lee Van Cleef

— Pete Monty

Harlan Warde

— Det. Lacey

Dan Riss

— Lt. Bob Imlay

Lewis Martin

— Police Lt. Ed Chisolm

Murray Alper

— Cop (uncredited)

Joanne Arnold

— Mona Ross' Secretary (uncredited)

William Boyett

— Officer Kellogg (uncredited)

Leonard Bremen

— Fred (uncredited)

Paul Bryar

— Lt. Cade (uncredited)

Jack Carr

— Fred (uncredited)

Russ Conway

— Reporter (uncredited)

Edgar Dearing

— Fitz (uncredited)

Edward Earle

— Vault Teller (uncredited)

George Eldredge

— Mr. Lawson (uncredited)

Gil Frye

— Cop (uncredited)

Percy Helton

— Mr. Jenner (uncredited)

Byron Kane

— Prof. Bruno Varney (uncredited)

Robert Karnes

— Lou (uncredited)

Mickey Knox

— Policeman (uncredited)

Mike Lally

— Detective in Lineup and Bank (uncredited)