 Buster KeatonRonald, The Boy | Ronald, The Boy |
 Anne CornwallMary Haynes, The Girl | Mary Haynes, The Girl |
 Flora BramleyMary's friend | Mary's friend |
 Harold GoodwinJeff Brown, A rival | Jeff Brown, A rival |
 Snitz EdwardsThe Dean | The Dean |
 Carl HarbaughCrew Coach | Crew Coach |
| SSam CrawfordBaseball Coach | Baseball Coach |
 Florence TurnerA Mother | A Mother |
 Lee BarnesUSC Athlete (uncredited) | USC Athlete (uncredited) |
| RRobert BolingUSC Athlete (uncredited) | USC Athlete (uncredited) |
 Charley BorahUSC Athlete (uncredited) | USC Athlete (uncredited) |
 Leighton DyeUSC Athlete (uncredited) | USC Athlete (uncredited) |
| PPaul GoldsmithUSC Athlete (uncredited) | USC Athlete (uncredited) |
| KKenneth GrumblesUSC Athlete (uncredited) | USC Athlete (uncredited) |
 Charlie HallCoxswain (uncredited) | Coxswain (uncredited) |
| BBud HouserUSC Athlete (uncredited) | USC Athlete (uncredited) |
| MMorton KaerUSC Athlete (uncredited) | USC Athlete (uncredited) |
| EEric MackUSC Athlete (uncredited) | USC Athlete (uncredited) |
| JJames T. MackHigh School Principal (uncredited) | High School Principal (uncredited) |
| BBuddy MasonJeff's Friend (uncredited) | Jeff's Friend (uncredited) |
 Madame Sul-Te-WanCook (uncredited) | Cook (uncredited) |
 Grant WithersJeff's Friend (uncredited) | Jeff's Friend (uncredited) |
| SShorty WordenUSC Athlete (uncredited) | USC Athlete (uncredited) |
