Michael Olysius 'Bull' O'Hara
The Big Parade
Philadelphia O'Brien
Fools Highway
Sergeant Langley
Up and Going
Bull Clarkson
Call of the West
Charlie Dornewald (as Thomas O'Brien)
The Sagebrusher
Williams (as Thomas O'Brien)
Square Deal Sanderson
Inspector
The Last Warning
Matt
White Fang
Dynamite Galloway
Winner Take All
Johnny Day
The Gentleman from America
Spike
It's a Cinch
Joe O'Neil
The Fire Brigade
Bill Gray
Broadway Scandals
First Detective
The Woman Condemned
Tom Dugan
The Flying Fool
Bill Whipple
The Chorus Kid
Taxi Driver
Take It from Me
Truckdriver
Dance Hall
Ulysses
The Private Life of Helen of Troy
Alfred Carr
The Murder in the Museum
Dugan
Hurricane
Bull - Job Foreman
The Last Edition
Reel-Mixing Projectionist
The Talk of Hollywood
Moran
Untamed
Granny
Policeman
The Unexpected Father
Red
San Francisco Nights
Wansley
The Devil Within
Olie Margerine
Plumb Crazy
Henchman Kildane
Phantom of Santa Fe
Joe Farley
Trapped
Timothy
Winners Of The Wilderness
Irish
Twelve Miles Out
Starbuck
Moby Dick
Officer Patrick Moran
That's My Daddy
Abner Hawkins
The Frontiersman
James - the Chauffeur
His Lucky Day
Sgt. Doolan
The Bugle Call
Police Sgt. Pat Collins
The Phantom
Stanley Steele
Crack O' Dawn
Mike
The Flaming Forest
Sgt. O'Brien
The Peacock Fan
The Prizefighter
Poker Faces
Sandy McPherson
The Runaway Express
Riley
So This Is Marriage?
Larry Maloney
On With the Show!
Dan Padden
The Midnight Special
Black Barney
Smiling Irish Eyes
Known For
Acting
Known Credits
48
Gender
Male
Birthday
1890-07-23
Place of Birth
San Diego, California, USA
Also Known As
Thomas Everett O'Brien