Ibsen Dana Elcar was an American television and film character actor. He appeared in about 40 films as well as in the 1960s television series Dark Shadows as Sheriff George Patterson and the 1980s and 1990s television series MacGyver as Peter Thornton, MacGyver's immediate supervisor at the Phoenix Foundation. Elcar had appeared in the pilot episode of MacGyver as Andy Colson before assuming the role of Thornton.

Dark Shadows is an American gothic soap opera that aired weekdays on the ABC television network from June 27, 1966, to April 2, 1971. The show depicted the lives, loves, trials, and tribulations of the wealthy Collins family of Collinsport, Maine, where a number of supernatural occurrences take place.