Vincent Von Growl, a.k.a. "Vinnie", is a bear friend of Yin and Yang. His first official appearance was in the season 2 episode, Today You Are a Bear. He is an aspiring circus performer, practicing several circus acts such as walking on electric wires as though they were trapeze wires and balancing atop a giant ball. Currently, he is a member of Yin and Yang's Woo Foo Army and has achieved the Woo Foo Knight In a Little Less Training rank as of Yin Yang Who?.
He was never seen fighting when he joined the Woo Foo Army. He also shown to be the equivalent of a kike in the universe he lives in as the bears celebrate Bear Mitzvahs.