Joseph M. Newman Director James Craig Frank "Blackie" Marshall Actor William Lundigan James Kevin "Jim" Gardiner Actor Patricia Dane Jean Avery Actor John Carradine Martin Caswell Actor Keenan Wynn 'Slip' O'Mara Actor Grant Withers Fowler Actor Darryl Hickman 'Blackie' as a Boy Actor Jack Holt Duncan Frazier Actor Gordon Kahn Screenwriter David Lang Screenwriter Samuel Marx Producer Jackson Rose Cinematographer Frank E. Hull Film Editing Daniele Amfitheatrof Original Music David Snell Original Music Edwin B. Willis Set Decoration Cedric Gibbons Art Director