Cast
Terence Aloysius «Slip» Mahoney
Sach
Gabe Moreno
Johnny Higgins
Blinky Harris
Whitey
Chuck
ButchDynamite Carson, the Champ Bunny Talbot 
Louie
Boomer Higgins
Lefty Conlin
Mrs. HigginsBill Rader, Sportscaster Fighter Joey Prince Editor 
Boxing Commissioner
Cop at Ringside, not listed in creditsFighter, not listed in credits Fighter, not listed in credits Referee, not listed in credits Pete, the Bartender, not listed in credits 
Fighter in Gym, not listed in creditsYoung Man in Sweetshop, not listed in credits Fighter in Montage, not listed in credits Page at Boxing Arena, not listed in credits Lug Carrying Equipment, not listed in credits 
Fighter, not listed in creditsAd Libber, not listed in credits 
Highball, not listed in credits
Tough Customer Tearing Up Program, not listed in creditsDave Dorgan - Jimmy's Manager, not listed in credits 
Commissioner's Assistant, not listed in creditsTitle Fight Referee, not listed in credits 
Rosemeyer, Arena Doorman, not listed in credits
Fighter, not listed in credits
Joey's Handler, not listed in creditsFighter in Montage, not listed in credits 
Ring Announcer, not listed in creditsNeedles, a Henchman, not listed in credits 
Dimwitted Goon, not listed in credits
Ring Announcer, not listed in creditsBenefit Fight Referee, not listed in credits 
Beef, a Henchman, not listed in creditsJimmy's Handler, not listed in credits Carson's Handler, not listed in credits 
Knockdown Timekeeper, not listed in credits
Referee in Montage, not listed in creditsCarson's Handler, not listed in credits 
Marty, a Henchman, not listed in creditsFighter Jimmy Higgins, not listed in credits 