Ηθοποιοί

• Matt Damon
• Robin Williams — Sean Maguire
• Minnie Driver — Skylar
• Ben Affleck
• Cole Hauser — Billy McBride
• Stellan Skarsgård — Prof. Gerald Lambeau
• Casey Affleck — Morgan O'Mally
• Vik Sahay — M.I.T. Student
• Steven Kozlowski — Carmine Friend #1
• Scott William Winters — Clark
• Philip Williams — Head Custodian
• Patrick O'Donnell — Marty
• Kevin Rushton — Courtroom Guard
• Joe Cannon — Prosecutor
• Barna Moricz — Bunker Hill Student
• Chas Lawther — M.I.T. Professor
• Patrick O'Donnell — Marty
• Frank Nakashima — Executive #1
• David Eisner — Executive #3
• Bruce Hunter — NSA Agent
• Alison Folland — M.I.T. Student
• George Plimpton — Psychologist
• Richard Fitzpatrick — Timmy
• Christopher Britton — Executive #2
• James Allodi — Security Guard