M. Moto sur le ring

Peter Lorre

Kentaro Moto

Keye Luke

Lee Chan

Dick Baldwin

Bill Steele

Lynn Bari

Penny Kendall

Douglas Fowley

Nick Crowder

Jayne Regan

Linda Benton

Harold Huber

Lieutenant Riggs

Maxie Rosenbloom

Horace 'Knock-Out' Wellington

John Hamilton

Philip Benton

George E. Stone

Jerry Connors

Bernard Nedell

Clipper McCoy

Ward Bond

Biff Moran

Cliff Clark

Tom McGuire

Eddie Marr

Sammy (as Edward Marr)

Lon Chaney Jr.

Joey

Irving Bacon

Sheriff Tuttle (Uncredited)

Stanley Blystone

Policeman

Don Brodie

Ticket Seller

Mike Mazurki

Bit Part (Uncredited)

Paul Fix

Gangster (Uncredited)

Olin Howland

Deputy Sheriff Burt (Uncredited)

Dick Elliott

Kansas City Gambler (Uncredited)

Pierre Watkin

District Attorney (as Pierre Watkins)

George Chandler

Boxing Spectator (Uncredited)

Charles D. Brown

Editor

Charles Williams

Gabby Marden