Reginald VelJohnson (born August 16, 1952) is an American actor and comedian. He is best known in the US for his role Carl Otis Winslow on the ABC/CBS sitcom Family Matters which ran from 1989 to 1998. He was the only cast member to appear in every single episode. VelJohnson is best known outside the US for portraying LAPD Sgt. Al Powell in the film Die Hard (1988) and its sequel Die Hard 2 (1990).