[citation needed] He married British actress Ada Fuller Golden and became a step-father to her three children.

Afterward, he began to specialize in crafty or slimy villainous roles, such as Senator Charles Summer in The Birth of a Nation (1915), the mill owner Arthur Jenkins in Intolerance (1916), John Carver in The Courtship of Miles Standish (1923), Colonel Lestron in The Eagle of the Sea (1926), a pirate lieutenant in The Black Pirate (1926), a Pharisee in The King of Kings (1927) and King James in The Man Who Laughs (1928).

[3] In the 1960s, Jackie Coogan claimed Jean Harlow had lived in De Grasse's apartment for two years and was married to him when she was 16.

However, she did appear as an extra in the film Honor Bound (1928), in which De Grasse played "Blood Keller".

[4] De Grasse lived on the west coast until his death at age 78 in Hollywood from a heart attack during his sleep.