Jr is a 9 year old boy who is super silly and funny. He is the younger brother of Spike: the coolest kid in school. Spike is 14 years old, and is a very cool dude, and Jr wants to be just like him, even though Spike isn't super silly like he is. Jr has black, spikey hair, and wears green shoes, long yellow pants, a purple shirt, and a yellow bow tie. Jr spent all of Spike's college funds on SpongeBob popsicles, so now he has an endless supplies. Jr and Spike go to separate schools.