For some people, it helps keep the sanity. It seperates the professional persona from the personal persona. Gives them balance.
Also, the unions have rules that no two performers in the union can have the same name and if your real name is taken, you need to uses something esle.
Also, some people have down right strange names and they come up with something easier to say/spell or if they have a plain name, they want something more interesting to make them stand out.
Updated On: 10/3/03 at 10:27 PM