Initially, King is shown as loud, feisty, self-centered, expressive, lazy, comedic, and constantly laughing at anything that gives him enjoyment.

Befitting his name, King is used to acting like a monarch, treating people and objects as minions, ordering others around, and acting bigger than he is. He sometimes manages to assume leadership of some form, but loses it due to his negligence and ignorance. King hates being called cute and being treated like a baby, yet due to his small size.