Kevin the Echidna is one of Knuckles and Tikal's five sons, the younger brother of Timothy, Patricia, Theodore, Stephanie, Peter, and Tyler and the older brother of Paula, Karen, and Tara. He is the most violent out of ten children and will throw tantrums whenever he doesn't get his way. He is also not yet potty-trained, so he always wears diapers (even though he is 5 years old).