Movies:
* The Grapes of Wrath (1940) - Jim Casy's Father
* Stagecoach (1939) - Samuel Peacock
* The Ox-Bow Incident (1943) - Mr. Thomas
* The Best Years of Our Lives (1946) - Homer Parrish
* The Treasure of the Sierra Madre (1948) - Old Prospector
* The Red Pony (1949) - Gitano
* High Noon (1952) - The Bartender
* The Searchers (1956) - Old Man
* The Alamo (1960) - Jim Bowie's Father-in-Law
* How the West Was Won (1962) - Reverend
* The Greatest Story Ever Told (1965) - Old Man
Television:
* The Twilight Zone (1959-1964) - Multiple episodes
* Gunsmoke (1955-1975) - Multiple episodes
* Wagon Train (1957-1965) - Multiple episodes
* The Virginian (1962-1971) - Multiple episodes
* The Big Valley (1965-1969) - Multiple episodes
Other:
He also made numerous appearances in radio plays and worked on stage.
This is just a small selection of John Qualen's impressive filmography. He was a versatile actor who brought authenticity and gravitas to his roles, making him a beloved figure in Hollywood.