Harold Lockwood

Born in Brooklyn, Lockwood was raised and educated in Newark, New Jersey. Upon graduating, he began working in exporting. Lockwood quickly discovered that he did not enjoy exporting and quit to become an actor. He initially began his acting career in vaudeville. In 1910, Lockwood signed on with stock company for David Horsley and appeared in Western shorts. He later worked for the New York Motion Picture Company, Selig Polyscope Company and Famous Players Film Company. While at Famous Players, Lockwood was cast opposite actress May Allison in Allan Dwan's romantic film David Harum. The two would appear in over twenty-three films together during the World War I era, and became one of the first celebrated on-screen romantic duos. Lockwood and Allison were long rumored to have been romantically involved off-screen, though both denied it.

On January 8, 1906, Lockwood married Alma Jones. The couple had son, Harold Lockwood, Jr. (born 1908). Lockwood, Jr. later appeared in silent and sound films. Amongst his earliest credits is the 1928 World War I film Lilac Time, starring Colleen Moore and Gary Cooper.

On October 19, 1918, Lockwood died at the age of 31 of Spanish influenza at the Hotel Woodward in New York City. He had contracted the illness during production of Shadows of Suspicion (1919), which had some scenes completed using a double shot from behind. Lockwood's funeral was held on October 22 at Frank E. Campbell Funeral Chapel, after which he was buried in the Woodlawn Cemetery in the Bronx.

Harold Lockwood and May Allison in a scene still for the 1916 silent drama Big Tremaine

• The Best Man Wins (1911)
• Hearts Adrift (1914)
• Tess of the Storm Country (1914)
• The Scales of Justice (1914)
• The Unwelcome Mrs. Hatch (1914)
• Such a Little Queen (1914)
• Wildflower (1914)
• The Man from Mexico (1914)
• The Crucible (1914)
• David Harum (1915)
• The Great Question (1915)
• The Buzzard's Shadow (1915)
• Are You a Mason? (1915)
• Jim the Penman (1915)
• Intolerance (1916)
• The Gamble (1916)
• The Man in the Sombrero (1916)
• The Other Side of the Door (1916)
• The Broken Cross (1916)
• Lillo of the Sulu Seas (1916)
• Big Tremaine (1916)
• The Secret Wire (1916)
• Paradise Garden (1917)
• Broadway Bill (1918)

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  The Masked Rider (1916)

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  The River of Romance (1916)

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  The Great Romance (1919)

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  With Addie Townsend (1918)