Henry Fonda as Tom Joad

Jane Darwell as Ma Joad

John Carradine as Casy

Charley Grapewin as Grandpa Joad

Dorris Bowdon as Rosasharn

Russell Simpson as Pa Joad

O.Z. Whitehead as Al Joad

John Qualen as Muley Graves

Eddie Quillan as Connie Rivers

Zeffie Tilbury as Grandma Joad

Frank Sully as Noah

Frank Darien as Uncle John

Darryl Hickman as Winfield

Shirley Mills as Ruth Joad

Roger Imhof as Thomas

Grant Mitchell as Caretaker

Charles D. Brown as Wilkie

John Arledge as Davis

Harry Tyler as Bert

William Pawley as Bill

Charles Tannen as Joe

Selmer Jackson as Inspection Officer

Charles Middleton as Leader

Eddy Waller as Proprietor

Paul Guilfoyle as Floyd

David Hughes as Frank

Cliff Clark as City Man

Joe Sawyer as Bookkeeper

Frank Faylen as Tim

Adrian Morris as Agent

Hollis Jewell as Muley's Son

Robert Homans as Spencer

Irving Bacon as Driver

Kitty McHugh as Mae

Gino Corrado as Chef (uncredited)

Pat Flaherty as Deputy (uncredited)

Francis Ford as (uncredited) (unconfirmed)

Herbert Heywood as Gas Station Attendant (uncredited)

Mae Marsh as Muley's Wife (uncredited)

Dan White as Poor Man Walking with Woman in Transient Camp (uncredited)

Wally Albright as Boy Who Bragged of Eating Chicken (uncredited)

Erville Alderson as Arkansas Storekeeper (uncredited)

Robert J. Anderson as Hungry Boy (uncredited)

Arthur Aylesworth as Father (uncredited)

Trevor Bardette as Jule - Bouncer at Dance (uncredited)

Joe Bordeaux as Migrant (uncredited)

George P. Breakston as Boy (uncredited)

Buster Brodie as Migrant (uncredited)

Delmar Costello as Migrant (uncredited)

W.H. Davis as Migrant (uncredited)

Emily Gerdes as Migrant (uncredited)

Barney Gilmore as Migrant (uncredited)

Edna Hall as Migrant (uncredited)

Charles Herzinger as Migrant (uncredited)

Harry Holden as Migrant (uncredited)

David Kirkland as Migrant (uncredited)

Lillian Lawrence as Migrant (uncredited)

Scotty Mattraw as Migrant (uncredited)

Frank Newburg as Migrant (uncredited)

Walter Perry as Migrant (uncredited)

Rose Plumer as Migrant (uncredited)

Al Stewart as Migrant (uncredited)

Charles Thurston as Migrant (uncredited)

D.H. Turner as Migrant (uncredited)

John Wallace as Migrant (uncredited)

Charles West as Migrant (uncredited)

Russ Clark as Guard (uncredited)

James Flavin as Guard (uncredited)

Philip Morris as Guard (uncredited)

Max Wagner as Guard (uncredited)

Harry Cording as Deputy (uncredited)

Ralph Dunn as Deputy (uncredited)

Bob Reeves as Deputy (uncredited)

Lee Shumway as Deputy (uncredited)

Paul Sutton as Deputy (uncredited)

William Haade as Deputy with shogun (uncredited)

Frank O'Connor as Deputy #1 (uncredited)

Harry Tenbrook as Deputy / Troublemaker (uncredited)

Tom Tyler as Deputy Handcuffing Casy (uncredited)

Thornton Edwards as Motorcycle Cop (uncredited)

Rex Lease as Cop (uncredited)

Ben Hall as Gas Station Attendant in Bakersfield (uncredited)

Louis Mason as Man in Camp (uncredited)

Walter McGrail as Gang Leader (uncredited)

Walter Miller as New Mexico Border Guard (uncredited)

George O'Hara as Clerk (uncredited)

Ted Oliver as State Policeman (uncredited)

Inez Palange as Woman in Camp (uncredited)

Steve Pendleton as Gas Station Attendant #2 in Needles (uncredited)

Robert Shaw as Gas Station Attendant #1 in Needles (uncredited)

Jack Pennick as Camp Helper (uncredited)

Dick Rich as Keene Ranch Guard (uncredited)

Gloria Roy as Waitress (uncredited)

Peggy Ryan as Hungry Girl (uncredited)

Georgia Simmons as Woman (uncredited)

Harry Strang as Fred - Trucker #2 at Diner (uncredited)

Glen Walters as Woman Who Gets Shot (uncredited)

Norman Willis as Joe - Shot at Floyd (uncredited)

Bill Wolfe as Square-Dance Caller (uncredited)

Waclaw Rekwart as Migrant (uncredited)

Josephine Allen as Migrant

John Binns as Migrant

Leon Brace as Migrant

Henry Brahe as Migrant

Scotty Brown as Migrant

Hal Budlong as Migrant

Nora Bush as Migrant

Shirley Coates as Girl in Migrant Camp

Cal Cohen as Migrant

Cecil Cook as Migrant

Jim Corey as Buck Jackson - Witness at Dance

Jane Crowley as Migrant

Helen Dean as Migrant

John Dilson as Bookseller

Lillian Drew as Migrant

Ward Bond as (uncredited)