HorseDuck is a character in the episode Movin' On Up.
HorseDuck was CatDog's great-great uncle who died while moving south in the winter. Mr. Sunshine brought news of his death and a parcel of his home Lake Wanamaker to CatDog. Although they never heard of him before, CatDog cried upon hearing news of his death but they rejoiced that they could move to his former home. They do not talk.
They are related to CatDog.
Horseduck has a horse head and duck head, he wear a black suitcase over a pink T-shirt with a white cotton tie,.