Peter Lorre as Kentaro Moto

Keye Luke as Lee Chan

Dick Baldwin as Bill Steele

Lynn Bari as Penny Kendall

Douglas Fowley as Nick Crowder

Jayne Regan as Linda Benton

Harold Huber as Lieutenant Riggs

Maxie Rosenbloom as Horace 'Knock-Out' Wellington

John Hamilton as Philip Benton

George E. Stone as Jerry Connors

Bernard Nedell as Clipper McCoy

Charles Williams as Gabby Marden

Ward Bond as Biff Moran

Cliff Clark as Tom McGuire

Eddie Marr as Sammy (as Edward Marr)

Lon Chaney Jr. as Joey

Irving Bacon as Sheriff Tuttle (Uncredited)

Stanley Blystone as Policeman

Don Brodie as Ticket Seller

Mike Mazurki as Bit Part (Uncredited)

Paul Fix as Gangster (Uncredited)

Olin Howland as Deputy Sheriff Burt (Uncredited)

Dick Elliott as Kansas City Gambler (Uncredited)

Pierre Watkin as District Attorney (as Pierre Watkins)

George Chandler as Boxing Spectator (Uncredited)

Charles D. Brown as Editor