Battleblock Theater may be adorable, but behind that cute facade is a harrowing tale of prisoners forced to fight to the death in epic cage matches for your entertainment. To detail a little more about our hapless characters, The Behemoth has released a set of videos highlighting several Battleblock prisoners.
The official site (via Joystiq) offers brief character bios with the videos. Prisoner #10401, for example, is guilty of Necromancy. Prisoner #10329 used to be a Cyclopediast. Check out the videos below to see them in action.