Ramón Antonio Gerard Estévez, better known by his stage name Martin Sheen, is an actor known for his performances as Captain Willard in the film Apocalypse Now, Confederate General Robert E. Lee in the film Gettysburg, President Josiah Bartlet in the television series The West Wing, and as the voice of The Illusive Man in the video game Mass Effect 2. He has worked with some of cinema's prominent directors, including Martin Scorsese, Steven Spielberg, Oliver Stone, Francis Ford Coppola, Richard Attenborough, Terrence Malick and Mike Nichols.
With the critical acclaim he has received as an actor, Sheen has become known as an activist. Born and raised in Dayton, Ohio, United States, with Irish and Galician parents, Sheen is also an Irish citizen.
He is the father of actors Emilio Estévez, Ramón Estévez, Carlos Irwin Estévez, and Renée Estévez, and is the brother of Joe Estévez, also an actor.
Sheen was born in Dayton, Ohio, the son of Mary Ann and Francisco Estévez, who was a factory worker/machinery inspector at the National Cash Register Company at the time. Both parents were immigrants, his mother was born in Borrisokane, County Tipperary, Ireland and his father in Parderrubias, Galicia, Spain. After moving to Dayton, Estévez worked for several decades for the National Cash Register Company. Sheen grew up on Brown Street in the South Park neighborhood, one of 10 siblings. He attended Chaminade High School and was raised as a Roman Catholic. Sheen eventually adopted his stage name in honor of the Catholic archbishop and theologian, Fulton J. Sheen.