"Iron Man" Mason is a talented but rather dimwitted prizefighter. Against the advice of his crusty old manager George Regan, Mason dumps his ever-loving girlfriend Judy Williams in favor of sexy blonde Rose Whitney.
| Actor | Role |
|---|---|
 William GarganGeorge Regan | George Regan |
 Dorothea KentRose Whitney | Rose Whitney |
 Nan GreyJudy Williams | Judy Williams |
 Noah Beery Jr.Bud Mason | Bud Mason |
 Roland DrewPaul Lewis | Paul Lewis |
 Polly RowlesMrs. Lewis | Mrs. Lewis |
 Lew KellyJeff | Jeff |
 Edwin StanleyReilly | Reilly |
| JJohn ButlerMcNeil | McNeil |
| EEddie RobertsBattle O'Keefe | Battle O'Keefe |
| JJoe SmallwoodSpike | Spike |
| WWalter FriedmanDink Pappas | Dink Pappas |