Then you should have said, "... in order to appear more traditionally Christian." Plenty of actors change their names for a variety of reasons: Karen Johnson to something astronomically more memorable (and Jewish-sounding

); Angelina Voigt to separate herself from her estranged and well-known father; Eric Bishop to something more distinctive; Carlos Estevez, á la his father, to sound less ethnic and perhaps get more roles.
Here's a name for you: Maya Rudolph. Birth name Maya Rudolph. Race African-American/Caucasian. Religious heritage Jewish. Here's another name: Sammy Davis, Jr. Buoyant convert to or from a race. You can, and he did, convert to Judaism.