Don 'Red' BarryMike O'Hara, "King Cobra" Sheila RyanJanet 'J.L.' Brannigan Joseph CrehanOscar Brannigan Tony CanzoneriSwinger Markham William EdmundsProfessor Berger Lyle TalbotRadio Announcer James J. CasinoBoxer (uncredited) Ned RobertsFighter (uncredited) Jack PerryTrainer (uncredited) John BreenFight Spectoator (uncredited) Noble 'Kid' ChissellFight Spectator (uncredited) Bobby HenshawFight Spectator (uncredited) Charles MortonFight Spectator (uncredited) Sol MurgiFight Spectator (uncredited) Stanley PriceFight Spectator (uncredited) Harvey ParryBit Role (uncredited) Al BainFight Spectator (uncredited) Ron OrmondScénář / Producent June Carr OrmondSpoluproducent Robert L. LippertVýkonný producent Ted OffenbeckerSet Decoration Ernest MillerDirector Of Photography Donald S. WakelingCostume Design Paul StanhopeMakeup Artist Austen JewellAsistent režie Walter GreeneHudební skladatel Murray LernerProducer's Assistant 
