John Ireland as Jack Burden

Broderick Crawford as Willie Stark

Joanne Dru as Anne Stanton

John Derek as Tom Stark

Mercedes McCambridge as Sadie Burke

Shepperd Strudwick as Adam Stanton

Ralph Dumke as Tiny Duffy

Anne Seymour as Mrs. Lucy Stark

Katherine Warren as Mrs. Burden

Raymond Greenleaf as Judge Monte Stanton

Walter Burke as Sugar Boy

Will Wright as Dolph Pillsbury

Grandon Rhodes as Floyd McEvoy

Marshall Bradford as Senator (uncredited)

Chet Brandenburg as Man Listening to Speech (uncredited)

Wheaton Chambers as Senator (uncredited)

Stephen Chase as Puckett (uncredited)

Tom Coleman as Man Tearing Down Poster (uncredited)

James Conaty as Party Guest (uncredited)

Roy Darmour as Politician at Harrison's Headquarters (uncredited)

Earle S. Dewey as Joe Harrison (uncredited)

King Donovan as Reporter (uncredited)

Robert Filmer as Editor (uncredited)

Paul Ford as Spokesman for Impeachment (uncredited)

Dick Gordon as Politician (uncredited)

William E. Green as Senator (uncredited)

Charles Haefeli as Man in Cheap Bar (uncredited)

Frank Hagney as Stark Strong-Arm Man (uncredited)

Richard Hale as Richard Hale (uncredited)

Bert Hanlon as Editor (uncredited)

Judd Holdren as Politician (uncredited)

Robert Karnes as Legislator (uncredited)

Kenner G. Kemp as Legislator (uncredited)

Donald Kerr as Spectator (uncredited)

Nolan Leary as Senator (uncredited)

Wilbur Mack as Former Governor Stanton (uncredited)

Louis Mason as Minister (uncredited)

Paul Maxey as Local Chairman (uncredited)

Frank McLure as Doctor (uncredited)

Walter Merrill as Man in City Bar (uncredited)

Harold Miller as Speaker of the House (uncredited)

John 'Skins' Miller as Drunk at Football Game (uncredited)

Pat O'Malley as Politician (uncredited)

Jeffrey Sayre as Party Guest (uncredited)

Charles Sherlock as Politician at Harrison's Headquarters (uncredited)

Ray Spiker as Farmer Listing to Speech (uncredited)

Helene Stanley as Helene Hale (uncredited)

Larry Steers as Man at Impeachment Hearing (uncredited)

Houseley Stevenson as Madison, Editor (uncredited)

Charles Sullivan as Man Listening to Speech (uncredited)

William Tannen as Man in City Bar (uncredited)

Phil Tully as Football Coach (uncredited)

Glen Walters as Woman Listening to Speech (uncredited)

Frank Wilcox as Public Relations Man (uncredited)

Harry Wilson as One of Duffy's Goons (uncredited)

Bill Wolfe as Farmer (uncredited)

Al Wyatt Sr. as State Trooper (uncredited)

Sam Harris as Politician (uncredited)

Charles Ferguson as Newspaper Office Worker (uncredited)

Richard Bartell as State Legislator (uncredited)

Mary Bear as File Clerk (uncredited)

William Bruce as Commissioner (uncredited)

Edwin Chandler as Radio Announcer (uncredited)

William Cottrell as Reporter (uncredited)

Jack Deery as Man at Impeachment Hearing (uncredited)

George Farmer as Bus Man (uncredited)

Tom Ferrandini as Politician (uncredited)

Ted French as Dance Caller (uncredited)

Slim Gaut as Man Listening to Speech (uncredited)

John Giles as Young Boy (uncredited)

Avery Graves as Senator (uncredited)

Jimmie Horan as Man Listening to Speech (uncredited)

James Linn as Politician (uncredited)

H.C. Miller as Pa Stark (uncredited)

Truett Myers as Minister at Funeral (uncredited)

Frank O'Connor as Party Guest (uncredited)

Sammy Shack as Duffy Associate (uncredited)

Irving Smith as Butler (uncredited)

George Taylor as Politician (uncredited)

Al Thompson as Man in Cheap Bar (uncredited)

Glen Thompson as State Trooper (uncredited)

A.C. Tillman as Sheriff (uncredited)

Reba Waterson as Receptionist (uncredited)