Adam Lyon is the main protagonist of the My Gym Partner's a Monkey series.
Adam is a young Belgium-American young boy. He attends a school full of animals due to his last name being "Lyon". He is best friends with a a wreckless, immature, spider-moneky named Jake Spidermonkey. He tries his best to fit in with regular kids, but they don't seem to like him due to being a student at an all animal school. He thinks he is always right and he thinks he is the only one in his school to have any commom sense.
As the series title suggests, in gym class, Adam was paired up with Jake Spidermonkey and the two are now best friends. Jake's plans have them getting involved in situations which end up with Adam in trouble. Adam, being physically weak, is often preyed upon by the other animal students.
His personality is downtrodden, due to being in an animal school and he also has a reputation of complaining about his daily experiences at the school. Adam can be selfish and strongwilled at times. Outside of school, he is often seen with a human girl named Kerry, with whom he has a secret crush. His efforts to impress her end up with Adam's embarrassment. Towards the middle of the series Adam seems to be on the borderline of sanity. Throughout the series, he has shown an extreme interest in clowns, for instance his favorite super hero is Captain Clowny, he eagerly hopes to attend a clown-based summer day-camp, and his college of choice is Clown College, as seen on his resume in the episode My Feral Lyon.