The secondary antagonist of the video game Conker's Bad Fur Day. Kriplespac is the German-accented scientist and right-hand man of the Panther King. However, he's not as loyal to the Panther King as he seems; rather, he has his own plans...
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)