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 (as Pat O'Brien) |
 | The Roaring West (1935) Cowhand Steve |
 | The Freckled Rascal (1929) Jim Kane |
 | The House of Terror (1928) |
 | Shadows of the West (1921) Jim Kern |