The well-regarded Mask of the Phantasm film introduced fans ... of his double life in the process. The primary villain of the first season of Batman Beyond is a radioactive menace.

A spin-off of the semi-hit animated TV series, Batman: Mask of the Phantasm goes even further into the roots of the bat-dude's particular pathologies, especially where Mom 'n' Dad are concerned.

DC.com recently posted the Bat-villains who have appeared the most in Batman comics, and two high-profile rogues join the Joker as the top choices.