Self-made millionaire Thornton Melon decides to get a better education and enrolls at his son Jason's college. While Jason tries to fit in with his fellow students, Thornton struggles to gain his son's respect, giving way to hilarious antics.
| Actor | Role |
|---|---|
 Rodney DangerfieldThornton Melon | Thornton Melon |
 Sally KellermanDiane | Diane |
 Burt YoungLou | Lou |
 Keith GordonJason Melon | Jason Melon |
 Robert Downey Jr.Derek | Derek |
 William ZabkaChas | Chas |
 Paxton WhiteheadPhillip Barbay | Phillip Barbay |
 Adrienne BarbeauVanessa | Vanessa |
 M. Emmet WalshCoach Turnbull | Coach Turnbull |
 Terry FarrellValerie | Valerie |
 Ned BeattyDean Martin | Dean Martin |
 Severn DardenDr. Barazini | Dr. Barazini |
 Sam KinisonProfessor Terguson | Professor Terguson |
 Robert PicardoGiorgio | Giorgio |
 Kurt VonnegutSelf | Self |
 Edie McClurgMarge | Marge |
 Sarah AbrellSorority Girl | Sorority Girl |
| DDana AllisonYoung Woman | Young Woman |
| BBoris AplonTony Meloni | Tony Meloni |
| NNora BolandAgnes | Agnes |
 Kimberlin BrownGirl in Dorm Hallway | Girl in Dorm Hallway |
| LLisa DentonLisa | Lisa |
| BBob DrewContractor | Contractor |
 Jason HerveyYoung Thornton | Young Thornton |
 Leslie ScarboroughCoed #1 | Coed #1 |
 James IngersollJudge | Judge |
 Michael McGradyPlayer #1 | Player #1 |
 Santos MoralesBartender | Bartender |
| BBeth PetersMrs. Stuyvesant | Mrs. Stuyvesant |
 Phil RubensteinExecutive #1 | Executive #1 |