Harry Northrup
Acting
La donna di Parigi
Revel's Valet (uncredited)
The Heart of Maryland
Gen. Joe Hooker
Il trionfo della vita
Reformer
The Shield of Honor
A.E. Blair
I quattro cavalieri dell'apocalisse
The General
The Last Warning
Coroner
Party Girl
Robert Lowry
Naturich la moglie indiana
Meadows - the Butler
Prisoners
Prosecuting Attorney
Vagabond Lady
Café Doorman (uncredited)
Jazzmania
American Capitalist
The Luck of the Irish
Richard Camden
The Greatest Power
Albert Bernard (as Harry S. Northrup)
Men Call It Love
Brandt
Arizona
Capt. Hodgeman
Burning Daylight
The Stranger
West Wind
Girot - a Mestizo
The Greatest Menace
Herbert Van Raalte
Regan's Daughter
Regan - Mary's Father and Saloon Proprietor
Fifty-Fifty
Former Prisoner (as H.S. Northrup)
Flower of the North
Thorpe
Human Wreckage
Steve Stone
Devil's Island
The Commandant
The Cheer Leader
John Crandall
The Millionaire's Double
Richard Glendon
Coronets and Hearts
Vanity Fair
Capt. Rawden Crawley
The Eyes of Mystery
Roger Carmichael
The Unchastened Woman
Michael Krellin
Two Women
W.G. Griggs
In Judgment of...
Andrew Vail
The Hushed Hour
Buck Blodgett
The Christian
Lord Robert Ure
The Divine Sinner
Amb. D'Ray
Rock of Ages
Her Admirer
The White Circle
Northmour
Polly of the Storm Country
Marcus MacKenzie
The Mills of the Gods
DeWaldis, Giulia's Lawyer
The Blue Envelope Mystery
Fischer
The Cave Man
Dagban
As the Sun Went Down
Arbuthnot
Lifting the Ban of Coventry
Cadet David Hanks
The Painted World
Murree
The Trail To Yesterday
The Battle Cry of Peace
The Indian Mutiny
An Indian Prince
Vultures and Doves
Detective Burns
My Lady's Slipper
Marquis du Tremignon
Racing Romance
Mr. Channing
The Hieroglyphic
Edgar Barton
The Traveling Salesman
Franklin Royce
Britton of the Seventh
Captain Granson
The Painted World
Murree
The Illumination
Maximus
Seven Deadly Sins: Greed
Alixe; or, the Test of Friendship
Arlington Tappan
At the Eleventh Hour
Mr. Daley
Within an Ace
Tom Monroe
The Beautiful Lie
Mortimer Grierson
Children of the Feud
Carson Belfield
Madge of the Mountains
The Black Sheep
Their Compact
Ace High Horton
The Hindoo's Curse
Guy Randall
The Way of the Strong
James Leyburn
Under the Daisies
John Mears
The Girl and the Sheriff
The Sheriff
The Voice of Conscience
Dick Liggett
Hate
Dave Hume
The Fear Woman
Sidney Scarr
The Brute Breaker
Baptiste Navet
Where the Money Went
Fred Hart - the Husband
Wing Toy
Ye Low
Ups and Downs
Billy Wallace - the Husband
By Woman's Wit
The Husband