Pat J. O'Brien

Bury Me Not on the Lone Prairie

1941 • Bill Salters

Doomed Caravan

1941 • Jim Ferber

Panamint's Bad Man

1938 • Adams - Mine Owner

Flaming Frontiers

1938 • Henchman Harper

Bar 20 Justice

1938 • Frazier

Hawaiian Buckaroo

1938 • Steve Wainwright (as Pat O'Brien)

Tim Tyler's Luck

1937 • Patrolman Berry

Tailspin Tommy in The Great Air Mystery

1935 • Milt Howe

Outlawed Guns

1935 • Babe Rivers

The Roaring West

1935 • Cowhand Steve

The Freckled Rascal

1929 • Jim Kane

The House of Terror

1928

Marry in Haste

1924

Shadows of the West

1921 • Jim Kern