Nick Birch is a fictional character from the animated television series Big Mouth. He is a middle school student navigating the challenges of adolescence, including puberty and relationships. Nick is known for his awkwardness and humorous personality, often finding himself in embarrassing situations. As a character, Nick is depicted as a loyal friend, particularly to Andrew Glouberman, and often provides comic relief in the series. He is also characterized by his insecurities and struggles with self-acceptance, making him relatable to many viewers experiencing similar issues during their teenage years.