John Wayne

Reuben J. "Rooster" Cogburn

Kim Darby

Mattie Ross

Glen Campbell

"La Boeuf"

Jeremy Slate

Emmett Quincy

Robert Duvall

Ned Pepper

Dennis Hopper

"Moon"

Alfred Ryder

Goudy

Strother Martin

Colonel G. Stonehill

Jeff Corey

Tom Chaney

Ron Soble

Captain Boots Finch

James Westerfield

Judge Parker

John Fiedler

Lawyer Daggett

John Doucette

"Sheriff"

Donald Woods

"Barlow"

Edith Atwater

Mrs. Floyd

Carlos Rivas

"Dirty Bob"

H.W. Gim

Chen Lee

John Pickard

Frank Ross

Elizabeth Harrower

Mrs. Ross

Ken Renard

Yarnell

Kenneth Becker

Farrell Parmalee

Wilford Brimley

Minor Role (uncredited)

Chuck Hayward

Card Player / Raft Man (uncredited)

Gene Coogan

Boarding House Guest (uncredited)

Myron Healey

Deputy at Prisoner Unloading (uncredited)

James McEachin

Judge Parker's Bailiff (uncredited)

Boyd 'Red' Morgan

Red - Ferryman (uncredited)

Stuart Randall

McAlester (uncredited)

Connie Sawyer

Talkative Woman at Hanging (uncredited)

Jeffrey Sayre

Courtroom Spectator (uncredited)

Jay Silverheels

Condemned Man at Hanging (uncredited)

Dean Smith

Minor Role (uncredited)

Guy Wilkerson

The Hangman (uncredited)

Hank Worden

R. Ryan - Undertaker (uncredited)