Spike is a 14 year old boy with a big ego, but is still nice. He is the older brother of Jr: a silly goofball. Jr is 9 years old, and while he is funny, Spike can find him annoying. Spike has black, spiky hair, and wears green shoes, long yellow pants, and a purple shirt with a yellow danger icon. Every morning, Spike has to manually force his hair up. Jr and Spike go to separate schools.