Deepak Dalmatian is a supporting character in 101 Dalmatian Street. He is one of the 99 puppies among Delilah and Doug. He has markings on his face that resemble the yin-yang symbol, reflective of the opposite sides of his personality.
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.)