Evil Bill was first shown in Bill and Teds Bogus Joureny.He was intented by Nomolos De Nomolos.Evil Bill resembles Bill Preston his good self.
He was invented at a unknown time. He has a partner in crime evil ted who resembles Ted Logan. He was programmed to destroy the good versions of the great ones. His master Nomolos De Nomolos hates him and evil ted because they is exotically like the real bill but evil.