Biography
Walter Andrew Brennan (July 25, 1894 – September 21, 1974) was an American actor and singer. He won the Academy Award for Best Supporting Actor for his performances in Come and Get It (1936), Kentucky (1938), and The Westerner (1940), making him one of only three male actors to win three Academy Awards. Brennan was also nominated for his performance in Sergeant York (1941). Other noteworthy performances were in To Have and Have Not (1944), My Darling Clementine (1946), Red River (1948), and Rio Bravo (1959).
Description above from the Wikipedia article Walter Brennan, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Filmography
Cast Credits

Golden Saddles, Silver Spurs
Character: (archive footage)
MOVIE • 2000

The Silver Screen: Color Me Lavender
Character: Self (archive footage)
MOVIE • 1997

Bogart: The Untold Story
Character: Self (archive footage)
MOVIE • 1997

La Classe américaine
Character: 'Stumpy' (archive footage)
MOVIE • 1993

Smoke In The Wind
Character: H. P. Kingman
MOVIE • 1975

Home for the Holidays
Character: Benjamin Morgan
MOVIE • 1974

The Men Who Made the Movies: Howard Hawks
Character: Self (archive footage)
MOVIE • 1973

Two for the Money
Character: Cody Guilford
MOVIE • 1972

The Day They Hanged Kid Curry
Character: Silky O'Sullivan
MOVIE • 1971

Alias Smith and Jones
Character:
TV • 1971

The Over-the-Hill Gang Rides Again
Character: Nash Crawford
MOVIE • 1970

The Young Country
Character: Sheriff Matt Fenley
MOVIE • 1970

To Rome with Love
Character: Andy Pruitt
TV • 1969

The Over the Hill Gang
Character: Nash Crawford
MOVIE • 1969

Support Your Local Sheriff!
Character: Pa Danby
MOVIE • 1969

The Glen Campbell Goodtime Hour
Character: Self
TV • 1969

The One and Only, Genuine, Original Family Band
Character: Grandpa Bower
MOVIE • 1968

The Movie Orgy
Character: Self (archive footage)
MOVIE • 1968

Who's Minding the Mint?
Character: Pop Gillis
MOVIE • 1967

The Guns of Will Sonnett
Character: Will Sonnett
TV • 1967