Death Bear is the main antagonist of the Regular Show episode "Death Bear".
The Death Bear is a large brown bear wearing a red cape around his neck, and a pickelhaube.
Described as "Evil to the core". Troubled in his younger days, he is known to kill anyone he sees. The Death Bear is an extremely dangerous predator, having the ability to slice a man's arm off wth ease, withstand countless tranquilizer darts—hundreds of which are needed to defeat him, and is even capable of performing karate based attacks.
Fifteen to twenty years prior to the event of the episode, he was a troubled bear who lived in the Park Zoo. One day, out of nowhere, he killed his trainer. The zoo was forced to close down, but Death Bear wouldn't leave. So he still roams the abandoned zoo, growing more evil over the years, only to be able to survive by breaking into people's homes, eating all of their food, and then eating THEM! When Mordecai, Rigby, Margaret and Eileen go to the abandoned zoo to take a picture of its cage, they are ambushed by the Death Bear, who chases them all the way back home. Here, they call animal control to trap the bear, but they are unsuccesful. The bear then attempts to kill the gang but Mordecai keeps firing tranquilizer darts at it (after accidentally hitting Rigby in the shoulder first wiht a dart), which seem to have no effect on the beast, until it suddenly falls down asleep. The bear then was taken to an animal sanctuary, where he lived better and redeemed himself.