Darko Crevasse (voiced by Julian Richings) - A gothic caped villain whose eyesight is accustomed to darkness, and therefore must wear dark glasses. He summons a huge flock of bats to drop guano on anyone who opposes him. As he cannot stand light, his ultimate plan is to plunge the city into eternal darkness. He summons also owls, raccoons and other creatures of night, because he worked at Zoo. He later returns with an army of roadkill zombies in the series finale (Night of the Living Roadkill), however it turns out to be a dream by Ty.
He is based off Ozzy Osbourne. He also hates Halloween.
- First Appearance: Episode 24 ("Lights Out")