Sean Penn as Willie Stark

Jude Law as Jack Burden

Anthony Hopkins as Judge Irwin

Kate Winslet as Anne Stanton

Mark Ruffalo as Adam Stanton

Patricia Clarkson as Sadie Burke

James Gandolfini as Tiny Duffy

Jackie Earle Haley as Roderick "Sugar Boy" Ellis

Kathy Baker as Mrs. Burden

Talia Balsam as Lucy Stark

Travis Champagne as Tom Stark

Frederic Forrest as Willie's Father

Connor Fox as Tennis Boy

Montgomery John as Adam Stanton, Age 11

Glenn Morshower as Commissioner

Kevin Dunn as Alex

Tom McCarthy as Editor

Paul Desmond as Slade

Jay Patterson as Senator

Michael Cavanaugh as Mr. Peyton

Caroline Lagerfelt as Mrs. Peyton

Valerie Stodghill as Miss DuMonde

Nicole Bobek as Ice Skater

Tom Aldredge as Carruthers' Banker

Lenka Peterson as Savannah Clerk

Eileen Ryan as Lily Littlepaugh

Gary Grubbs as Sheriff

Hunt Downer as Senate Leader

T.J. Falterman as Tom Stark at Age 11

Luke Morris as Jack at Age 10

Caroline Renee Christmann as Anne at Age 9

Montgomery John as Adam at Age 11

Bruce Heinrich as Mr. Burden

Jordan Rhodes as MacMurphy

Charlie Newell as Reporter

Joe Knezevich as Photographer 1

Marcus Hester as Photographer 2

Leila Bazzani as Burlesque Dancer

Keb' Mo' as Slade's Guitarist

Luis Campos as Snake Oil Salesman

Ralph E. Carroll Jr. as Priest

Benjamin C. Clement as River Power Clerk

Marlon Horton as Houseman