Ramón Antonio Gerardo Estévez (born August 3, 1940), better known by his stage name Martin Sheen, and also RAGE (his initials), is an American actor who achieved fame with roles in the films Badlands (1973) The Amazing Spider-Man (2013) and Apocalypse Now (1979). He also narrated Eyewitness on PBS.

He portrayed Bob Collier in the 1996 Touchstone Pictures film, The War at Home. He is also the father of Charlie Sheen and Emilio Estevez.