Mothball Lionheart is a pre-made male cat, living in Appaloosa Plains. He is owned by Hetty Lionheart, a cat obsessed lady, whom he dislikes. He lives with Pickles, his mate; Muffin, his enemy; and his kitten, Maria, whom is his best friend.
He fulfills Pickles' every wish, but independently of who the leader cat is, he is still seen as the wisest and oldest cat in the family. However, he is not technically the oldest cat in the family, being 17 days away from becoming elder, while his mate Pickles is 10. He has no skills at the start of the game.
He appears to be a male Calico cat. Calico cats are, in general, almost always female, and male cats only exist due to a genetic disorder.