Louise Belcher is the youngest of the Belcher siblings and is revealed to be 9 years old in season 1. In spite of being the youngest, she usually dominates her two older siblings. Precociously intelligent, manipulative, and aggressive (even towards adults), she is more than willing to exploit people if there is anything to be gained. She has an offbeat and dark sense of humor and picks locks as a hobby. Louise always wears her signature pink hat with bunny ears, regardless of the time of day or situation. She expresses affection by slapping people.
Go to Louise's Twitter
