Biography
Merlin Jay Olsen (September 15, 1940 – March 11, 2010) was an American professional football player, announcer, and actor. For his entire 15-year professional football career (1962 - 1976), he was a defensive tackle for the Los Angeles Rams. He was selected to play in the Pro Bowl a then-record 14 times (surpassed only by Tom Brady). He is a member of the Pro Football Hall of Fame and the College Football Hall of Fame. As an actor, Olsen is best known for portraying farmer Jonathan Garvey on the fourth through seventh seasons of Little House on the Prairie (1977 - 1981). He went on to star as the title character in the Western series Father Murphy (1981 - 1983).
Filmography
Cast Credits

Joe Montana: Cool Under Pressure
Character: Self (archive footage)
TV • 2022
Aaron's Way
Character: Aaron Miller
TV • 1988

Fathers and Sons
Character:
TV • 1986

Time Bomb
Character: Jake Calahan
MOVIE • 1984

Father Murphy
Character: John Michael Murphy
TV • 1981

The Golden Moment: An Olympic Love Story
Character: Todd Simms
MOVIE • 1980

A Fire in the Sky
Character: Stan Webster
MOVIE • 1978

Mitchell
Character: Benton
MOVIE • 1975

Little House on the Prairie
Character: Jonathan Garvey
TV • 1974

Kung Fu
Character: Perlee Skowrin
TV • 1972

The Brian Keith Show
Character:
TV • 1972

Something Big
Character: Sgt. Fitzsimmons
MOVIE • 1971

One More Train to Rob
Character: Eli Jones
MOVIE • 1971

Monday Night Football
Character: Defensive Tackle
TV • 1970

Monday Night Football
Character: Left Defensive Tackle
TV • 1970

Monday Night Football
Character: Defensive tackle
TV • 1970

The Undefeated
Character: Little George
MOVIE • 1969

Shindig!
Character:
TV • 1964

Petticoat Junction
Character:
TV • 1963