Martin Sheen has had a career enviable to many, but he mentioned recently that he now regrets performing for so many years with an anglicized name instead of his birth name. Sheen was born Ramón Antonio Gerardo Estévez to a Spanish immigrant father and Irish immigrant mother and said it is one of his regrets in a recent interview that he didn’t use that name for his acting career. Sheen brought up the name change in an interview with Closer Weekly while discussing his actor children. “The only influence I had on Emilio was to keep his name,” he said. “When he started out, his agent was advisin…