Katy Kat is an anthropomorphic, blue cat, with a patch of blonde hair on her head. She's good friends with Parappa and PJ Berri, but is even better friends with her fellow band members, Ma-san and Lammy. Her best friend is Sunny Funny, Parappa's love interest. She is very spirited and active, and very fashionable; she is a natural leader. Katy is a little bit breezy, but she actually tries hard and puts a lot of effort into the things she does. She wears a red striped crop top and pants.