罗宾·威廉姆斯

Robin McLaurim Williams

饰：肖恩·马奎尔 Sean Maguire

马特·达蒙

Matt Damon

饰：威尔 Will Hunting

明妮·德里弗

Minnie Driver

饰：斯凯勒 Skylar

本·阿弗莱克

Ben Affleck

饰：查基·沙利文 Chuckie Sullivan

卡西·阿弗莱克

Casey Affleck

饰：摩根 Morgan OMally

斯特兰·斯卡斯加德

Stellan Skarsgård

饰：杰拉德·朗博教授 Prof. Gerald Lambeau

科尔·豪瑟

Cole Hauser

饰：比利·麦克布莱德 Billy McBride

哈莫尼·科林

Harmony Korine

饰：杰夫 Jerve (uncredited)

维克·萨海

Vik Sahay

饰：麻省理工学院学生 M.I.T. Student #3 (as Vic Sahay)

乔治·普林普顿

George Plimpton

饰：亨利·利普金（心理学家） Henry Lipkin, Psychologist

Frank Nakashima

饰：Executive #1

克里斯·布里顿

Chris Britton

饰：Executive #2 (as Chris Britton)

弗朗切斯科·克莱门特

Francesco Clemente

饰：Rich, Hypnotist

Barna Moricz

Barna Moricz

饰：Vinnie, Bunker Hill College Student

Libby Geller

饰：Toy Store Cashier

Chas Lawther

Chas Lawther

饰：M.I.T. Professor

理查德·菲茨帕特里克

Richard Fitzpatrick

饰：Timmy

戴维·艾斯纳

David Eisner

饰：Executive #3

Bruce Hunter

Bruce Hunter

饰：NSA Agent #1

Robert Talvano

饰：NSA Agent #2

詹姆斯·阿洛迪

James Allodi

饰：Security Guard

Kent Damon

饰：Chess Game Player (uncredited)

Daniel Olsen

饰：MIT student (uncredited)

Jessica Morton

饰：Maurine - Bunker Hill College Student

Bobby Curcuro

Bobby Curcuro

饰：(uncredited)

Riva Di Paola

饰：M.I.T. Student (uncredited)

Thomas Lundy

Thomas Lundy

饰：Waiter (uncredited)

Paul McGillicuddy

饰：Race Track Fan (uncredited)

Brian Rivers

饰：Harvard Square resident,Wonderland Greyhound Park bettor (

斯科特·威廉姆·文特斯

Scott William Winters

饰：Clark

约翰·迈顿

John Mighton

饰：Tom

Rachel Majorowski

饰：Krystyn

Colleen McCauley

饰：Cathy

Matt Mercier

饰：Barbershop Quartet #1

Ralph St. George

饰：Barbershop Quartet #2

Rob Lynds

饰：Barbershop Quartet #3

丹·华盛顿

Dan Washington

饰：Barbershop Quartet #4

艾莉森·福兰德

Alison Folland

饰：M.I.T. Student #1

Derrick Bridgeman

饰：M.I.T. Student #2

Shannon Egleson

饰：Girl on Street

Rob Lyons

饰：Carmine Scarpaglia

史蒂文·科兹洛夫斯基

Steven Kozlowski

饰：Carmine Friend #1

Jennifer Deathe

饰：Lydia

菲利普·威廉姆斯

Philip Williams

饰：Terry,Head Custodian

帕特里克·奥唐奈

Patrick O'Donnell

饰：Marty,Assistant Custodian

凯文·拉什顿

Kevin Rushton

饰：Courtroom Guard

吉米·弗林

Jimmy Flynn

饰：George H. Malone, the Judge

Joe Cannon

饰：Prosecutor

Ann Matacunas

饰：Court Officer

金彧亮

Yuliang Jin

饰：Alexander