Nick Birch is a fictional character from the animated television series Big Mouth. He is a middle school student who navigates the challenges of adolescence, including puberty and relationships. Nick is known for his awkwardness and humorous personality, often finding himself in embarrassing situations. In the show, Nick is best friends with Andrew Glouberman and is often seen dealing with the ups and downs of growing up. He is characterized by his distinctive voice and relatable experiences, making him a central figure in the series' exploration of teenage life and the complexities of human emotions.