This past week, Martin Sheen recorded his lines for the role of Orestes Brownson, leading Catholic American thinker and Isaac Hecker's one-time mentor.
As IMDB relates:
Multiple Emmy and Golden Globe Award winner Martin Sheen is one of America's most celebrated, colorful, and accomplished actors.
For television audiences, Sheen is best recognized for his six-time Emmy nominated performance as President Josiah Bartlet in The West Wing (1999). Sheen won six of his eight Golden Globe nominations as well as an ALMA Award; and two individual SAG Awards; for the White House series. He won the Golden Globe Award for Best Performance by an Actor TV Series Drama in 2001.
In 2006, the actor played ill-fated cop Oliver Queenan in Martin Scorsese's Academy Award-winning film The Departed (2006) opposite Leonardo DiCaprio, Matt Damon, Jack Nicholson, Mark Wahlberg and Alec Baldwin.
In 2006, Sheen was again nominated for an Emmy for Outstanding Guest Actor in a Comedy Series; this time for the CBS hit comedy Two and a Half Men (2003) starring his son Charlie Sheen.
In addition to series television, Sheen has appeared in several important made-for-television movies and mini-series including playing President John F. Kennedy in the television mini-series Kennedy (1983) for which he received a Golden Globe nomination.