Stephen Dorff Jr. (born July 29, 1973) is an American actor, known for portraying PK in The Power of One, Stuart Sutcliffe in Backbeat, Johnny Marco in Sofia Coppola's Somewhere, and for his roles in Blade (as self-styled vampire-overlord Deacon Frost), Cecil B. DeMented, The Motel Life, S.F.W. and Space Truckers. Dorff was born in Atlanta, Georgia, the son of Nancy and Steve Dorff, who is a composer and music producer. Dorff started acting in the late 1980s, landing only minor roles at first. He made guest appearances in television programs such as Diff'rent Strokes, Blossom, Roseanne, Married... with Children. He appeared in the television movies In Love and War, I Know My First Name is Steven and What a Dummy. Dorff's first major film role was in The Gate (1987).

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