Noah Wyle as Steve Jobs

Anthony Michael Hall as Bill Gates

Joey Slotnick as Steve Wozniak

J.G. Hertzler as Ridley Scott

Wayne Pére as Captain Crunch

Sheila Shaw as Mrs. Wozniak

Gema Zamprogna as Arlene

John DiMaggio as Steve Ballmer

Josh Hopkins as Paul Allen

Gailard Sartain as Ed Roberts

Allan Kolman as Therapeut

Marcus Giamatti as Dan Kottke

Melissa McBride as Elizabeth Holmes

Jeffrey Nordling as Mike Markkula

Marc Worden as Chris Larson

Allan Royal as John Sculley

Bodhi Elfman as John Gilmore (as Bodhi Pine Elfman)

Karl Wiedergott as Mac Designer

Brian Gattas as Adamson

Paul Popowich as Jones

Doug Cox as Job Applicant

Michael Francis Clarke as IBM Executive #1

Michael Bryan French as IBM Executive #2

Gerald McCullouch as Rod Brock