Bud Alexander

Lou Francis

Helen Gray

Tommy Nelson

Boots Marsden

Boots Morgan

Det. Roberts

Dr. Philip Gray

Radio Announcer

Rocky Hanlon

Professor Dugan (uncredited)

Sneaky (uncredited)

Officer (uncredited)

Bald Man (uncredited)

Fight Spectator (uncredited)

Trainer (uncredited)

Ring Announcer (uncredited)

Man at Bar (uncredited)

Reporter (uncredited)

Dugan Detective School Graduate (uncredited)

Counter Man (uncredited)

Trainer (uncredited)

Newspaperman (uncredited)

Fight Spectator (uncredited)

Col. Duffie (uncredited)

Man (uncredited)

Reporter (uncredited)

Hospital Visitor (uncredited)

Man in Gym (uncredited)

Motorcycle Cop (uncredited)

Reporter (uncredited)

Milt (uncredited)

Bartender (uncredited)

Man (uncredited)

Fighter on Rowing Machine (uncredited)

Graduation Spectator (uncredited)

Policeman (uncredited)

Fight Spectator (uncredited)

Policeman (uncredited)

Trainer (uncredited)

Fight Spectator (uncredited)

Cop (uncredited)

Torpedo Al (uncredited)

Tough Guy in Bar (uncredited)

Dr. Turner (uncredited)

Graduation Spectator (uncredited)

Restaurant Patron (uncredited)

Photographer (uncredited)

Training Spectator (uncredited)

Fight Spectator (uncredited)

Fight Spectator (uncredited)

Photographer (uncredited)

Dugan Detective School Graduate (uncredited)

Rocky's Handler (uncredited)

Waiter (uncredited)

Fight Spectator (uncredited)

Waiter (uncredited)

Fighter (uncredited)

Nurse (uncredited)

Attendant (uncredited)

Lou's Handler (uncredited)

Newspaperman (uncredited)

Dugan Detective School Graduate (uncredited)

Referee (uncredited)

Stillwell (uncredited)

Rooney - Rocky's Manager (uncredited)

Directing

Writing

Writing

Writing

Writing

Art

Art

Directing

Art

Costume & Make-Up

Sound

Art

Camera

Costume & Make-Up

Writing

Sound

Crew

Production

Sound

Sound

Writing

Sound

Acting

Sound

Sound

Sound

Art

Sound

Sound

Sound

Sound

Sound

Camera

Sound