Kako is Oobi's outgoing and overconfident best friend, who fancies himself a talented musician and artist. He is clever, dependable and quite goofy at times. However, Kako is shown to get frustrated easily if things do not go his way. In these situations, he can always count on Oobi and Uma to help him overcome his problems. He thinks that Oobi is the most "perfecto" companion he could ever have.
Kako has dark skin and pink fingernails. His eyes are a blue-green shade in the shorts and in the first season of full-length episodes. In the second season, his eyes are a lighter green. He almost always wears a red cap in the full-length episodes.