Matt Damon
Will Hunting
Acting
Robin Williams
Sean Maguire
Acting
Ben Affleck
Chuckie Sullivan
Acting
Stellan Skarsgård
Gerald Lambeau
Acting
Minnie Driver
Skylar
Acting
Casey Affleck
Morgan O'Mally
Acting
Cole Hauser
Billy McBride
Acting
Vik Sahay
MIT Student
Acting
John Mighton
Tom
Writing
Rachel Majorowski
Krystyn
Acting
Colleen McCauley
Cathy
Acting
Matt Mercier
Barbershop Quartet #1
Acting
Ralph St. George
Barbershop Quartet #2
Acting
Rob Lynds
Barbershop Quartet #3
Acting
Dan Washington
Barbershop Quartet #4
Acting
Alison Folland
MIT Student
Acting
Derrick Bridgeman
MIT Student
Acting
Shannon Egleson
Girl on Street
Acting
Rob Lyons
Carmine Scarpaglia
Acting
Steven Kozlowski
Carmine Friend #1
Acting
Jennifer Deathe
Lydia
Directing
Scott William Winters
Clark
Acting
Philip Williams
Head Custodian
Acting
Patrick O'Donnell
Assistant Custodian
Acting
Kevin Rushton
Courtroom Guard
Acting
Jimmy Flynn
Judge Malone
Acting
Joe Cannon
Prosecutor
Acting
Ann Matacunas
Court Officer
Acting
George Plimpton
Psychologist
Acting
Francesco Clemente
Hypnotist
Acting
Jessica Morton
Bunker Hill Student
Acting
Barna Moricz
Bunker Hill Student
Acting
Libby Geller
Toy Store Cashier
Acting
Chas Lawther
MIT Professor
Acting
Richard Fitzpatrick
Timmy
Acting
Frank Nakashima
Executive #1
Acting
Chris Britton
Executive #2
Acting
David Eisner
Executive #3
Acting
Bruce Hunter
NSA Agent
Acting
Robert Talvano
NSA Agent #2
Acting
James Allodi
Security Guard
Acting
Michael Arthur
Reunion Guest (uncredited)
Acting
Christian Harmony
Student (uncredited)
Acting
Riva Di Paola
MIT Student (uncredited)
Acting
Harmony Korine
Hervé (uncredited)
Directing
Thomas Lundy
Waiter (uncredited)
Acting
Paul McGillicuddy
Race Track Fan (uncredited)
Acting
Daniel Olsen
MIT Student (uncredited)
Acting
Stephen L'Heureux
Bartender (uncredited)
Production