As his name suggests Beanie is almost brain dead like he has, he usually sits in his home doing absolulty nothing at all. The only thing he might think about is getting revenge on his old rival Slappy Squirrel, despite that his stupity usually ruins Walter's plans at getting revenge on Slappy.
Beanie looks like any other bison execpt for the droopy face. He is about 6'2. He must be in this late 80s.