For the first time in his entire acting career, Charlie Sheen will use his birth name in a movie. Perhaps the troubled actor is trying to reinvent himself, or maybe he's just trying to get into the Latino spirit for Robert Rodriguez's new Machete movie. Whatever the reason, a screengrab of the upcoming thriller reveals that the actor formerly known as Sheen will be billed as "Carlos Estevez." Dad Martin Sheen's real name is actually Ramón Antonio Gerardo Estevez. He started using the Americanized name to break into acting but never legally changed it.