Steven Williams is an American actor in films and television. He is known for his roles as Captain Adam Fuller on 21 Jump Street, Lt. Jefferson Burnett on The Equalizer, Det. August Brooks on L.A. Heat, X on The X-Files, Russell "Linc" Lincoln in Linc's, and Rufus Turner in Supernatural.
He was nominated for a 1977 Joseph Jefferson Award for Actor in a Principal Role in a Musical for "Joplin", at the St. Nicholas Theatre Company in Chicago, Illinois.