Midfielder Harrison Thompson made his debut for Norwich's Under-18s on 19th February 2022 in a 5-1 defeat to Birmingham City. He made one further appearances that season. He had joined Norwich during the 2019/20 season at under-14 level.

He signed a scholarship contract with Norwich in July 2022. He is described as a ball-playing central midfielder.

He was released by Norwich on 20th May 2024.

He moved to Eckerd College in the USA in January 2025 and played for their team the Tritons