Mr. Koala is Nutsy's father. He was missing but he was found in the mother's day episode. At the end of the first season he married Mrs. Koala and becomes Blinky's father and Mrs. Koala's husband.
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.)
