[1] Riches went on to graduate from Emil Dale Academy with a Bachelor of Arts (BA) in Musical Theatre, awarded by the University of Bedfordshire.
[6] Riches made his stage debut in 2016, appearing as twins Ben and Lisa in the musical Disaster!.
[8] In April 2022, Riches portrayed a student at Truham Grammar School in the Netflix teen series Heartstopper.
It is a semi-autobiographical children's book that recalls Riches' autism diagnosis as a nine-year-[...] and reframes neurodivergence in all its forms as a superpower".
[17][18][19] In December 2024, Riches made his pantomime debut at the Aylesbury Waterside Theatre in Buckinghamshire in The Further Adventures of Peter Pan: The Return of Captain Hook.