Choo-Choo is one of the main characters in the show "Top Cat".
He is a pink cat wearing a white turtle-neck long-sleeve shirt, his tip of his tail is white.
He is the tallest of the six alley cats (counting himself) and one of Top Cat's pals. He is enthusiastic and devoted to Top Cat even he is clueless as to what he is doing. He is sensitive and is unable to talk to females because he is too shy. In Hawaii Here we Come, he lives at the fire house as the fire house cat.
He is possibly a card expert, because he has been seen playing a poker whenever he is not with the gang.
- He is voiced by Marvin Kaplan in the series and Jason Harris in the movie.