Errr, not really because its a fancy dress not I'm exactly the same as them. If he went dressed a green mankini with a mustache and a wig on, and spoke like a kazakhstan person trying to speak American then i think they would know who he was.
I came in as Jesus during my freshman year. The year before that, one kid did the pope. So it should probably be something religious. If you really want to push it, dress as a Muslim and say you are the prophet Muhammed