| Robin Williams | Sean McGuire |
| Matt Damon | Will Hunting |
| Ben Affleck | Chuckie |
| Minnie Driver | Skylar |
| Stellan Skarsg�rd | Gerard Lambeau |
| Casey Affleck | Morgan |
| Cole Hauser | Billy |
| John Migthon | Tom |
| Rachel Majowski | Ktystyn |
| Colleen McCauley | Cathy |
| Rob Lyons | Carmine Scarpaglia |
| Jennifer Deathe | Lydia |
