Episcopalian minister Gil Allen keeps up his college days interest in boxing by working out at a gym run by his friend, Tom Kelley but declines offers to fight in an actual staged bout, until he realizes he could use the prize money to purchase equipment for local polio victims. Keeping his real identity secret and hoping to step away after one big payday, Gil signs a contract to fight for greedy promoter Gus MacAuliffe.
| Actor | Role |
|---|---|
 Paul DouglasGus MacAuliffe | Gus MacAuliffe |
 John DerekFather Gil Allen | Father Gil Allen |
 Jody LawrancePearl Gorman | Pearl Gorman |
 Cesar RomeroTony Lorenzo | Tony Lorenzo |
 Ernest TruexFather Ritchie | Father Ritchie |
 Richard ShannonTom Kelly | Tom Kelly |
| RRicky VeraPepito (as Ricky Vera) | Pepito (as Ricky Vera) |
 Robert CornthwaiteDr. Lomas | Dr. Lomas |
 Edith EvansonStella | Stella |
| LLou NovaTiger | Tiger |
 Baynes BarronTony's Henchman | Tony's Henchman |
| BBabette BainDolores (uncredited) | Dolores (uncredited) |
 Bill BaldwinFight Announcer (uncredited) | Fight Announcer (uncredited) |
| RRichard BenderBoy (uncredited) | Boy (uncredited) |
 Mary BenoitNurse (uncredited) | Nurse (uncredited) |
 Estelle EtterreNurse with Iron Lung (uncredited) | Nurse with Iron Lung (uncredited) |