Guion

• Sam Hellman — screenplay
• Francis Martin — screenplay

Reparto

• Lee Tracy — Hap Hurley
• Roscoe Karns — Chick Moran
• Gail Patrick — Sue Parker
• Kent Taylor — Clint Blackburn
• Grace Bradley — Marie
• Billy Lee — Jimmy Parker
• G.P. Huntley — Major Fitz-Stanley
• Akim Tamiroff — Taxi Driver
• Gordon Westcott — George Parker
• Samuel S. Hinds — Mr. Pritchard
• Sarah Edwards — Abigail Adams
• Lillian Leighton — Mrs. Mason
• Ferdinand Munier — Jerry Mason
• Irving Bacon — Brick Briggs
• Florence Lake — Doris Pritchard
• Ronald R. Rondell — Clint's Friend
• Jerry Tucker — Boy
• Billy Bletcher — Cop
• A.S. Byron — Bartender
• Sayre Dearing — Party Guest
• Mary Dees — Minor Role
• John Indrisano — Pinky Duffy
• Lew Kelly — Attendant
• John Nasborough — Cop
• Jack Raymond — Prize Fight Manager
• Cyril Ring — Companion to Briggs
• Charles Sullivan — Man at Window
• Bobs Watson — Jimmy's Boxing Partner
• Robert Wilber — Man at Window
• Leonard Kibrick — Boy Outside Boxing Ring (uncredited)
• Charles Hill — Pinky Duffy's Manager

Vestuario y maquillaje

• Travis Banton — costume design

Producción

• Harold Hurley — producer

Cámara

• Harry Fischbeck — director of photography

Dirección

• James Cruze — director