Matt Damon

Character: Mark Whitacre

Scott Bakula

Character: Brian Shepard

Joel McHale

Character: Robert Herndon

Melanie Lynskey

Character: Ginger Whitacre

Tom Papa

Character: Mick Andreas

Rick Overton

Character: Terry Wilson

Thomas F. Wilson

Character: Mark Cheviron

Clancy Brown

Character: Aubrey Daniel

Tony Hale

Character: James Epstein

Richard Steven Horvitz

Character: Bob Zaiderman

Ann Cusack

Character: Robin Mann

Allan Havey

Character: FBI Supervisor Dean Paisley

Rusty Schwimmer

Character: Liz Taylor

Lucas McHugh Carroll

Character: Alexander Whitacre

Eddie Jemison

Character: Kirk Schmidt

Craig Ricci Shaynak

Character: Discouraged Foreman

Scott Adsit

Character: Sid Hulse

Ann Dowd

Character: Kate Medford

Howie Johnson

Character: Rusty Williams

Nick Craig

Character: Kid at Pool #1

Cody Puckett

Character: Kid at Pool #2

Andy Daly

Character: Marty Allison

David Campbell

Character: Budweiser Client Representative

Carolyn R. Feltner

Character: Budweiser Receptionist

J.P. Gillain

Character: Zurich Bank Security Officer

Elena Eustache

Character: Zurich Bank Receptionist

John Hans Tester

Character: Peter Dreyer

Ludger Pistor

Character: Reinhard Richter

Rome Kanda

Character: Hirokazu Ikeda

Yoshio Be

Character: Kazutoshi Yamada

Raymond Ma

Character: Kanji Mimoto

Hervé Deschamps

Character: Philippe Rollier

Pascal Ifri

Character: Alain Crouy

Dann Seki

Character: Joon Mo Suh

Jayden Lund

Character: James Mutchnik

Chic Daniel

Character: FBI Agent at Raid

Joe Chrest

Character: Visiting Client

J.D. Mathein

Character: Phone Agent

William Marsh

Character: FBI Special Agent Ken Temples

Tom Smothers

Character: Dwayne Andreas

Bob Zany

Character: John Dowd

Tara Barrett

Character: Reporter #1

Tim Cain

Character: Reporter #2

Ken Frye

Character: Reporter #3

Huey Freeman

Character: Reporter #4

Brian Gallivan

Character: Ron Henkoff

Daniel Hagen

Character: Scott Roberts

Patton Oswalt

Character: Ed Herbst

Samantha Albert

Character: Mary Spearing

Jimmy Brogan

Character: Dr. Derek Miller

Paul F. Tompkins

Character: FBI Special Agent Anthony D'Angelo

Adam Paul

Character: FBI Special Agent Michael Bassett

Wayne Pére

Character: Sheldon Zenner

Scott England

Character: Local News Anchor

Joshua Funk

Character: FBI Special Agent Robert Grant

Candy Clark

Character: Mark Whitacre's Mother

Frank Welker

Character: Mark Whitacre's Father

Larry Clarke

Character: Whitacre's Second Attorney

Dick Smothers

Character: Judge Harold Baker

Steve Seagren

Character: Correctional Officer

Arden Myrin

Character: Sarah Scott (uncredited)