Martin Sheen

Ramón Estévez, better known by his stage name Martin Sheen, is an actor best known for his performances as Captain Willard in the film Apocalypse Now and President Josiah Bartlet on the television series The West Wing. He has worked for some of cinema's most prominent directors, including Martin Scorsese, Steven Spielberg, Oliver Stone, Richard Attenborough, Terrence Malick and Mike Nichols.

As well as the critical acclaim he has received as an actor, he has become known as an activist. Born and raised in Ohio, United States, with Irish and Spanish parents, Sheen is also an Irish citizen.

He is the father of actors Carlos Irwin Estévez (Charlie Sheen), Emilio Estévez, Ramón Estévez and Renée Estévez, and is brother of the actor Joe Estevez.

---Official Bio, martinsheen.net