Anne Hathaway Sarah Bilott
Mark Ruffalo Robert Bilott, Producer
Tim Robbins Tom Terp
Bill Pullman Harry Dietzler
Elizabeth Marvel Dr. Karen Frank (voice)
Mare Winningham Darlene Kiger
Bill Camp Wilbur Tennant
William Jackson Harper James Ross
Victor Garber Phil Donnelly
Kevin Crowley Larry Winter
Todd Haynes Director
Louisa Krause Carla Pfeiffer
John Newberg Dr. Gillespie
Lyman Chen Hack Scientist (uncredited)
Edward Lachman Director of Photography
Affonso Gonçalves Editor
Matthew Michael Carnahan Writer
Laura Rosenthal Casting
Leslie Shatz Sound Re-Recording Mixer, Sound Designer
Randall Poster Music Supervisor
Ryan Collison Foley Mixer
Sam Patton First Assistant Accountant
Daniel R. Hill DuPont Security Guard (uncredited)
Anne Morgan Makeup Artist
Mary Cybulski Still Photographer
Mario Correa Writer
Marcelo Zarvos Original Music Composer
Mike Seely Dr. Brooks
Jeff Skoll Producer
Christine Vachon Producer
Bobby Johanson ADR Mixer
Mark Goodermote Boom Operator
Jeffrey Grover Edward Wallace
Paul Candrilli Best Boy Grip
Elizabeth Himelstein Dialect Coach
Patricia Regan Makeup Department Head
Brian Gallagher David
Wynn Reichert Mediator
Marie Larkin Hair Department Head
Vinny Mazzarella Property Master
Chris Haney Visual Effects Supervisor
Robert Kessel Executive Producer
Abi Van Andel Kathleen Welch
Craig Haagensen Second Unit Director
Tom Kramer Music Editor
Mitch Lillian Key Grip
Chaney Morrow Young Farmer
Chris Haarhoff Steadicam Operator, "A" Camera Operator
Eliza Paley ADR Supervisor
Greg Violand Union Carbide Lawyer
Alison C. Rosa Second Assistant Director
Amy Warner Sarah's Mother
John E. Brownlee Taft Lawyer (uncredited)
Mike Marino Prosthetic Designer
Crystal Jurado Prosthetic Makeup Artist
Kim Ostroy Casting Associate
John W. DeBlau Gaffer
Mark Baechle Orchestrator
Guy Adan Unit Publicist
Pamela Koffler Producer
Denise Dal Vera Sandra Tennant
Matt Hudson Police Officer (uncredited)
Drew Kunin Production Sound Mixer, Sound Mixer
Angel Kerns Parkersburg Resident (uncredited)
Jesse Rosenthal Art Direction
Hannah Beachler Production Design
David Fultz Blood Test Patient (uncredited)
Lea Hutton Beasmore EPA / Dinner Guest (uncredited)
Eric Swanek First Assistant "A" Camera
Zach Mueller Utility Sound
Natalie LeCompte Graphic Designer
Marlene McCarty Title Designer