| 角色 | 饰演者介绍 |
| Professor Julius Kelp / Buddy Love / Baby Kelp | 杰瑞·刘易斯 |
| Stella Purdy | 斯黛拉·斯蒂文斯 |
| Dr. Hamius R. Warfield | Del Moore |
| Millie Lemmon | Kathleen Freeman |
| Football Player | Med Flory |
| Football Player | 诺曼·阿尔登 |
| Mr. Elmer Kelp | Howard Morris |
| Edwina Kelp | Elvia Allman |
| Dr. M. Sheppard Leevee | Milton Frome |
| Bartender | Buddy Lester |
| English student | Marvin Kaplan |
| College Student | David Landfield |
| Football Player | Skip Ward |
| College Student | 朱莉·帕瑞施 |
| Gibson College Student | 亨利·吉布森 |
| Themselves | Les Brown and His Band of Renown |
| Himself | Les Brown |
| Cab Driver (scenes deleted) | Mushy Callahan |
| Gym Attendant (uncredited) | Murray Alper |
| Student at Senior Prom (uncredited) | Les Brown Jr. |
| College Faculty Member (uncredited) | Joseph Forte |
| Narrator (voice) (uncredited) | Art Gilmore |
| Clothing Salesman (uncredited) | Gavin Gordon |
| Purple Pit Cigarette Girl (uncredited) | Terry Higgins |
| Faculty Member at Senior Prom (uncredited) | Stuart Holmes |
| Bodybuilder at Gym (uncredited) | 理查德·基尔 |
| Boy (uncredited) | Gary Lewis |
