From Wikipedia, the free encyclopedia. David Lynn Selby (born February 5, 1941) is an American character and stage actor. He has worked in movies, soap operas and television. The naturally black-headed Selby is best known for playing the roles of Quentin Collins on the ABC-TV serial, Dark Shadows (a role he played from 1968 to its ending in 1971 and again in the recent audio revival), and as the...