Jeff Bridges

Kevin Flynn / Clu

Garrett Hedlund

Sam Flynn

Olivia Wilde

Quorra

Bruce Boxleitner

Alan Bradley / Tron

James Frain

Jarvis

Beau Garrett

Gem

Michael Sheen

Castor / Zuse

Serinda Swan

Siren #2

Yaya DaCosta

Siren #3

Elizabeth Mathis

Siren #4

Kis Yurij

Half Faced Man

Conrad Coates

Bartik

Ron Selmour

Chattering Homeless Man

Dan Joffre

Key Security Guard #1 - Ernie

Darren Dolynski

Young Man on Recognizer

Kofi Yiadom

Disc Opponent #2 / Black Guard

Steven Lisberger

Shaddix

Donnelly Rhodes

Grandpa Flynn

Belinda Montgomery

Grandma Flynn

Owen Best

7 Year Old Sam Flynn

Matt Ward

Iso Boy

Zoe Fryklund

Iso Girl

Dean Redman

Light Jet Sentry

Mi-Jung Lee

Debra Chung

Christopher Logan

Nervous Program

Sheldon Yamkovy

Destitute Program

Dale Wolfe

Irv Culpepper

Joanne Wilson

Reporter #1

Catherine Lough Haggquist

Reporter #2

Thomas Bradshaw

Security Guard #2

Shafin Karim

East Indian Taxi Driver

Rob Daly

Lead Sentry

Mike Ching

Blue Gaming Program

Michael Teigen

Green Gaming Program

Brent Stait

Purple Gaming Program

Shaw Madson

Reporter #3

Amy Esterle

Young Mrs. Flynn

Cody Laudan

End of the Line Club Bouncer

Jeffrey Nordling

Richard Mackey

Christine Adams

Claire Atkinson

Kate Gajdosik

News Anchor

Jack McGee

Police Photographer

Dawn Mander

Crying Program

Michael Logie

Kevin Flynn Performance Double

John Reardon

Young Kevin Flynn / Clu Performance Double

Edie Mirman

Computer Voice (voice)

Allen Jo

Black Guard / Disc Opponent #1

Aaron Toney

Black Guard

Kim Do Nguyen

Black Guard

Patrick Sabongui

Gaming Program 1 - S

Will Erichson

Gaming Program 2 - S

Cillian Murphy

Edward Dillinger (uncredited)

Brandon Jay McLaren

Sobel (uncredited)

Thomas Bangalter

Masked DJ

Guy-Manuel de Homem-Christo

Masked DJ

Hugo Steele

End of Line Club Bouncer (uncredited)