Mary Badham
as Scout Finch

Gregory Peck
as Atticus Finch

Phillip Alford
as Jem

John Megna
as Dill Harris

Frank Overton
as Sheriff Heck Tate

Brock Peters
as Tom Robinson

Rosemary Murphy
as Maudie Atkinson

Ruth White
as Mrs. Dubose

Estelle Evans
as Calpurnia

Paul Fix
as Judge Taylor

Collin Wilcox Paxton
as Mayella Violet Ewell

James Anderson
as Bob Ewell

Alice Ghostley
as Aunt Stephanie Crawford

Robert Duvall
as Boo Radley

William Windom
as Mr. Gilmer

Crahan Denton
as Walter Cunningham Sr.

Richard Hale
as Nathan Radley

R. L. Armstrong
as Man (uncredited)

Walter Bacon
as Courtroom Spectator (uncredited)

Eddie Baker
as Courtroom Spectator (uncredited)

Bobby Barber
as Courtroom Spectator (uncredited)

John Barton
as Courtroom Spectator (uncredited)

Audrey Betz
as Courtroom Spectator (uncredited)

Danny Borzage
as Courtroom Spectator (uncredited)

John Breen
as Juror (uncredited)

Jess Cavin
as Juror (uncredited)

Noble 'Kid' Chissell
as Courtroom Spectator (uncredited)

Steve Condit
as Walter Cunningham Jr. (uncredited)

David Crawford
as David Robinson (uncredited)

Frank Ellis
as Juror (uncredited)

Charles Fredericks
as Court Clerk (uncredited)

Herman Hack
as Courtroom Spectator (uncredited)

Jester Hairston
as Spence Robinson (uncredited)

Chuck Hamilton
as Courtroom Spectator (uncredited)

Kim Hamilton
as Helen Robinson (uncredited)

Kim Hector
as Cecil Jacobs (uncredited)

Michael Jeffers
as Courtroom Spectator (uncredited)

Dick Johnstone
as Courtroom Spectator (uncredited)

Chester Jones
as Courtroom Spectator (uncredited)

Colin Kenny
as Courtroom Spectator (uncredited)

Ethan Laidlaw
as Townsman (uncredited)

Nancy Marshall
as Schoolteacher (uncredited)

Clyde McLeod
as Courtroom Spectator (uncredited)

Charles Morton
as Courtroom Spectator (uncredited)

Paulene Myers
as Jesse (uncredited)

William H. O'Brien
as Courtroom Spectator (uncredited)

Charles Perry
as Juror (uncredited)

Joe Ploski
as Courtroom Spectator (uncredited)

Hugh Sanders
as Dr. Reynolds (uncredited)

Barry Seltzer
as Schoolboy (uncredited)

Edward C. Short
as Courtroom Spectator (uncredited)

Mabel Smaney
as Courtroom Spectator (uncredited)

Eddie Smith
as Courtroom Spectator (uncredited)

Walter Smith
as Courtroom Spectator (uncredited)

Cap Somers
as Courtroom Spectator (uncredited)

George Sowards
as Courtroom Spectator (uncredited)

Ray Spiker
as Townsman (uncredited)

Kim Stanley
as Scout as an Adult - Narrator (voice) (uncredited)

Kelly Thordsen
as Burly Mob Member (uncredited)

Arthur Tovey
as Juror (uncredited)

George Tracy
as Townsman (uncredited)

Sailor Vincent
as Courtroom Spectator (uncredited)

Max Wagner
as Courtroom Spectator (uncredited)

Bill Walker
as Reverend Sykes (uncredited)

Joe Walls
as Bailiff (uncredited)

Dan White
as Mob Leader (uncredited)

Guy Wilkerson
as Jury Foreman (uncredited)

Chalky Williams
as Courtroom Spectator (uncredited)

Raoul Freeman
as Courtroom Spectator (uncredited)