Générique complet
Flying Fists
Bruce Bennett
Hal "Chopper' Donovan, aka Hal Smith
Jeanne Martel
Katherine 'Kay' Conrad
Fuzzy Knight
Spider
J. Farrell MacDonald
Bill 'One-Punch' Fagin
Guinn 'Big Boy' Williams
Slug Cassidy
Dickie Jones
Dickie Martin
Charles Williams
Meggs, the Reporter
John Elliott
Jim Conrad
William Benedict
Monk, Tall Kid
Jack 'Tiny' Lipson
Duncan