From Wikipedia
Eugene O'Brien (Birthname: Louis O'Brien b. November 14, 1880 in Boulder, Colorado – d. April 29, 1966 in Los Angeles, California) was a silent film star and stage actor. He studied medicine at the University of Colorado at Boulder but was keener on the stage than becoming a doctor. O'Brien switched to civil engineering under his family's guidance, but his heart was still set on becoming an actor. He moved to New York City and was...
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Flames
As Herbert Landis
John Smith
As John Smith
The Legend of Rudolph Valentino
As Self (archive footage)
The Return of Eve
As Adam
The Chaperon
As Jim Ogden
Secrets
As John Carlton
Poor Little Peppina
As Hugh Carroll
Under the Greenwood Tree
As Jack Hutton
The Spirit That Wins
As The Soldier
Sealed Hearts
As Jack Prentiss
Fine Manners
As Brian Alden
A Romance of the Underworld
As Thomas McDonald
The Wonderful Chance
As Lord Birmingham / 'Swagger' Barlow
Rebecca of Sunnybrook Farm
As Adam Ladd
The Safety Curtain
As Captain Merryon
The Romantic Age
As Stephen Winslow
Souls for Sables
As Fred Garlan
The Rise of Susan
As Clavering Gordon
Clay Dollars
Siege
As Kenyon Ruyland
Dangerous Innocence
As Major Seymour
Poppy
As Sir Evelyn Carson
The Moth
As Cpt. Bridgey
The Ghosts of Yesterday
As Howard Marston
By Right of Purchase
As Chadwick Himes
De Luxe Annie
As Jimmy Fitzpatrick
Her Only Way
As Joseph Marshall
The Voice from the Minaret
As Andrew Fabian
The Only Woman
As Rex Herrington
Channing of the Northwest
As Channing
The Broken Melody
As Stewart Grant
The Last Door
As The Magnet
The Scarlet Woman
As Robert Blake
Graustark
As Grenfall Lorry
The Moonstone
Little Miss Hoover
As Major Adam Baldwin
Fires of Faith
As Harry Hammond, a Broker
Just Out of College
As Edward Worthington Swinger
The Perfect Lover
As Brian Lazar
Gilded Lies
As Keene McComb
His Wife's Money
As Richard Flint
Worlds Apart
As Hugh Ledyard
A Fool and His Money
As John B. Smart