Cast & crew
Jack O'Brien
Filmography
| Year | Films | Role | Character |
|---|---|---|---|
| 1919 | From Hand To Mouth | Cast | — |
| 1920 | Queen's Up | Cast | — |
| 1920 | Haunted Spooks | Cast | — |
| 1921 | Corner Pocket, The | Cast | Policeman/Pool hall spectator |
| 1921 | Teaching The Teacher | Cast | Revenue officer who gets shot |
| 1921 | I Do | Cast | — |
| 1921 | At The Ringside | Cast | Flatherty gang member |
| 1921 | Dodge Your Debts | Cast | Peasant |
| 1921 | Fifteen Minutes | Cast | Man shooting target |
| 1922 | Blow 'Em Up | Cast | Policeman/Man with balloons |
| 1922 | Dumb-Bell, The | Cast | Doctor |
| 1922 | In The Movies | Cast | Film operator |
| 1922 | Strictly Modern | Cast | Angry hotel guest |
| 1923 | Finger Prints | Cast | Arguing man at counter |
| 1923 | Fully Insured | Cast | Office worker |
| 1923 | Courtship Of Miles Sandwich | Cast | Man who offers Snub a light |
| 1923 | Walkout, The | Cast | Angry employee |
| 1923 | California Or Bust | Cast | Motorist with flat tire/Posse |
| 1923 | It's A Gift | Cast | Swindler/Policeman/Drowning man |
| 1923 | Safety Last! | Cast | Man in strawboater hat |
| 1923 | Tough Winter, A | Cast | Manhole worker |
| 1923 | Collars And Cuffs | Cast | Card player |
| 1923 | Frozen Hearts | Cast | Officer at gun duel |
| 1923 | The Noon Whistle | Cast | Mill worker |
| 1923 | The Soilers | Cast | Prospector |
| 1923 | The Whole Truth | Cast | Second chemist/ Bum in park |
| 1923 | White Wings | Cast | Dental patient who gets hit by Fin |
| 1924 | At First Sight | Cast | Shoeshiner |
| 1924 | Publicity Pays | Cast | Stage actor |
| 1924 | Fast Company | Cast | Bellboy |
| 1924 | Cowboy Sheik, The | Cast | Ranch hand |
| 1924 | Two Wagons, Both Covered | Cast | — |
| 1924 | Don't Park There! | Cast | Bystander/, Policeman in San Francisco |
| 1924 | Near Dublin | Cast | Villager |
| 1925 | Bad Boy | Cast | Iron worker |
| 1925 | Big Red Ridinghood | Cast | — |
| 1925 | Rat's Knuckles, The | Cast | Chauffeur |
| 1925 | The Rat's Knuckles | Cast | Chauffeur |
| 1925 | Big Town, The | Cast | Motorcycle cop |
| 1925 | The Big Town | Cast | Motorcycle cop |
| 1926 | Fourth Alarm!, The | Cast | Firefighter |
| 1926 | Monkey Business | Cast | Fruit vendor |
| 1926 | Shivering Spooks | Cast | Grocer |
| 1926 | The Fourth Alarm! | Cast | Firefighter |
| 1926 | The Nickel-Hopper | Cast | Dance hall patron/Hobo |
| 1927 | Love My Dog | Cast | Dog catcher |
| 1927 | Old Wallop, The | Cast | Man who loses teeth |
| 1927 | The Old Wallop | Cast | Man who loses teeth |
| 1927 | Jewish Prudence | Cast | Courtroon spectator |
| 1927 | Sugar Daddies | Cast | Hotel guest yanked out of elevator |
| 1927 | Now I'll Tell One | Cast | Courtroom reporter |
| 1928 | Ol' Gray Hoss, The | Cast | Man hoisting piano |
| 1928 | Playin' Hookey | Cast | Movie villain |
| 1928 | The Ol' Gray Hoss | Cast | Man hoisting piano |
| 1928 | Two Tars | Cast | Motorist |
| 1928 | You're Darn Tootin' | Cast | Street combatant/First manhole worker |
| 1929 | Snappy Sneezer | Cast | Streetcar passenger |
| 1929 | Cat, Dog & Co. | Cast | Fruit vendor/Stunt |
| 1929 | Election Day | Cast | Shoeshine man/Gangster |
| 1929 | Little Mother | Cast | Guy knocked down by water |
| 1929 | Noisy Noises | Cast | Lemon vendor |
| 1929 | Saturday's Lesson | Cast | The Devil |
| 1929 | Pair Of Tights, A | Cast | Motorist |
| 1929 | Berth Marks | Cast | Man who trips over Stan's satchel |
| 1929 | Double Whoopee | Cast | Hotel employee |
| 1929 | Men O' War | Cast | Boater |
| 1929 | They Go Boom! | Cast | Tenant falling through ceiling |