Stephen Dorff (born July 29, 1973) is an American actor, best known for portraying Stuart Sutcliffe in Backbeat and for his roles in Blade and Cecil B. DeMented.

Dorff was born in Atlanta, Georgia, the son of Nancy and Steve Dorff, who is a composer and music producer. He was raised in Los Angeles, where his father worked.

Dorff started acting in the late 1980s, appearing in only minor roles at first. He appeared in shows such as Diff'rent Strokes, Roseanne, Married With Children. He also appeared in the television movies In Love and War, I Know My First Name is Steven and What a Dummy.