Mark Ruffalo

Robert Bilott

Anne Hathaway

Sarah Bilott

Tim Robbins

Tom Terp

Bill Pullman

Harry Dietzler

Bill Camp

Wilbur Tennant

Victor Garber

Phil Donnelly

Mare Winningham

Darlene Kiger

William Jackson Harper

James Ross

Louisa Krause

Carla Pfeiffer

Kevin Crowley

Larry Winter

Denise Dal Vera

Sandra Tennant

Abi Van Andel

Kathleen Welch

John Newberg

Dr. Gillespie

Jeffrey Grover

Edward Wallace

Brian Gallagher

David

Michael Haney

Managing Partner

Michael King

Unpleasant Partner

Greg Violand

Union Carbide Lawyer

Michael Joseph Thomas Ward

DOW Lawyer

Bella Falcone

Crystal Tennant (11-13)

Scarlett Hicks

Amy Tennant

Amy Morse

Tom's Secretary

Amy Warner

Sarah's Mother

Linnea Bond

Clerk

Kelly Mengelkoch

Dr. Mary-Sue Kimball

Annie Fitzpatrick

Judge

Wynn Reichert

Mediator

Mike Seely

Dr. Brooks

Teri Clark

Neurologist

Chaney Morrow

Young Farmer

Jon Osbeck

Sarah's Brother

Clyde Tyrone Harper

Judge #2

Lisa DeRoberts

Young Mother

Jennie Malone

Guitar Player / Singer

Sydney Miles

Laura Doggett

Trent Rowland

Tall Boy

Geoff Falk

Worker #1

Elizabeth Marvel

Dr. Karen Frank (voice)

Lea Hutton Beasmore

EPA / Dinner Guest (uncredited)

Anita Farmer Bergman

EPA Agent (uncredited)

Lyman Chen

Hack Scientist (uncredited)

Daniel R. Hill

DuPont Security Guard (uncredited)

Matt Hudson

Police Officer (uncredited)

Angel Kerns

Parkersburg Resident (uncredited)

Joanne Popolin

EPA Lawyer / Taft Lawyer (uncredited)

Ramona Schwalbach

Plantiff's Family (uncredited)

Carly Tamborski

EPA Hearing Attendee / Church Parishioner (uncredited)

John E. Brownlee

Taft Lawyer (uncredited)

Jenny McManus

Protester (uncredited)