Pat J. O'Brien
- Atuação
Conhecido por
Filmografia
- Bury Me Not on the Lone Prairie · Bill Salters
- Doomed Caravan · Jim Ferber
- Panamint's Bad Man · Adams - Mine Owner
- Flaming Frontiers · Henchman Harper
- A Mina Misteriosa · Frazier
- Hawaiian Buckaroo · Steve Wainwright (as Pat O'Brien)
- Tim Tyler's Luck · Patrolman Berry
- Tailspin Tommy in The Great Air Mystery · Milt Howe
- Outlawed Guns · Babe Rivers
- The Roaring West · Cowhand Steve
- The Freckled Rascal · Jim Kane
- Fury of the Wild · Jim Thayer
- The House of Terror
- Marry in Haste
- Shadows of the West · Jim Kern