The gangster Bugsy in the movie Bugsy starring Warren Beatty had the last name Siegel. He was a Jew.
Bugsy Malone was a movie from 1976 about a child gangster played by Scott Baio. They would "shoot" cream pies at each other instead of bullets. It was loosely based on the gangster Bugs Moran.
http://en.m.wikipedia.org/wiki/Bugsy_Malone
So, where did the name come from?