Shackelford is a blue ferret who is part of Larry's Amazing Animals circus. He is the show's main attraction until Clifford came and took over the show. At first, he thought Clifford was stealing his spotlight and fame, but when Clifford's friends told him about Clifford's true intentions, he realized that he had been wrong about Clifford and became a close friend.
- His voice actor is Wayne Brady, probably known forhis work on Whose Line Is It Anyway? He also voices Clover on Sofia the First.