John Wayne character Reuben J. "Rooster" Cogburn
Glen Campbell character "La Boeuf"
Kim Darby character Mattie Ross
Jeremy Slate character Emmett Quincy
Robert Duvall character Ned Pepper
Dennis Hopper character "Moon"
Alfred Ryder character Goudy
Strother Martin character Colonel G. Stonehill
Jeff Corey character Tom Chaney
Ron Soble character Captain Boots Finch
James Westerfield character Judge Parker
John Fiedler character Lawyer Daggett
John Doucette character "Sheriff"
Donald Woods character "Barlow"
Edith Atwater character Mrs. Floyd
Carlos Rivas character "Dirty Bob"
Isabel Boniface character Mrs. Bagby
H.W. Gim character Chen Lee
John Pickard character Frank Ross
Elizabeth Harrower character Mrs. Ross
Ken Renard character Yarnell
Jay Ripley character Harold Parmalee
Kenneth Becker character Farrell Parmalee
Wilford Brimley character Minor Role (uncredited)
