As A Heat Vampire
Weird, I know, but the only Caitlin Snow we know from the comics is from the New 52. While still not quite a Flash villain, in Justice League of America #7.2, Caitlin Snow gets caught in an accident in an arctic S.T.A.R. Labs outpost, becoming a “heat vampire” that is only satiated by Firestorm’s powers.
This seems like a possible direction for ‘The Flash’, as Caitlin would not be evil, but merely so desperate for energy that she’d have to resort to violence, and, presumably, a fight against the Flash.
