Julia Roberts

Erin Brockovich

Albert Finney

Ed Masry

Aaron Eckhart

George

Marg Helgenberger

Donna Jensen

Cherry Jones

Pamela Duncan

Veanne Cox

Theresa Dallavale

Conchata Ferrell

Brenda

Tracey Walter

Charles Embry

Peter Coyote

Kurt Potter

Michael Harney

Pete Jensen

Scarlett Pomers

Shanna Jensen

Scotty Leavenworth

Matthew Brown

Gina Gallego

Ms. Sanchez

T.J. Thyne

David Foil (1st PG&E Rep)

Valente Rodriguez

Donald

Erin Brockovich

Waitress

David Brisbin

Dr. Jaffe

Dawn Didawick

Rosalind

Pat Skipper

Defending Lawyer

Jack Gill

Defendant

Gemmenne de la Peña

Katie

Adilah Barnes

Anna

Ron Altomare

Biker Friend

Randy Lowell

Brian Frankel

Jamie Harrold

Scott

Joe Chrest

Tom Robinson

Meredith Zinner

Mandy Robinson

William Lucking

Bob Linwood

Mimi Kennedy

Laura Ambrosino

Scott Sowers

Mike Ambrosino

Kristina Malota

Annabelle Daniels

Wade Williams

Ted Daniels

Cordelia Richards

Rita Daniels

Michael Shamberg

PG&E Lawyer

Sheila Shaw

Ruth Linwood

Matthew Kimbrough

Bartender

Spencer Kayden

Tearful Courtroom Spectator (uncredited)

Norma Maldonado

Woman #1 (uncredited)

Julie Wagner

E.R. Admitting Nurse (uncredited)