Eric Roberts
From Tardis Wiki, the free Doctor Who reference
Eric Anthony Roberts (b. 18th April 1956, Biloxi, Mississippi, USA) played the Master in Doctor Who: The TV Movie. His other starring roles include Star 80 (1983), The Pope of Greenwich Village (1984), and Best of the Best (1989). He is the older brother of actress Julia Roberts. During the 2006-07 TV series, he played a recurring villain in the NBC TV series, Heroes, sharing several scenes with fellow Who alumni Christopher Eccleston. Later he played Sal Maroni in The Dark Knight (2008).
He recently appeared in Doctor Who Confidential describing the Master.