Thaddea Graham
Thaddea Graham (born 29 March 1997) is a Chinese-born Northern Irish actress. She is known for her television roles in the Sky One series "Curfew", the Netflix series "The Letter for the King" and "The Irregulars", the BBC One miniseries "Us", and "Doctor Who: Flux". Early life and education. Graham was adopted from an orphanage in Changsha, China, just after she turned one, and raised in County Down. She was one of the first international adoptees in Northern Ireland. She attended Killinchy Primary School in Killinchy and later Bloomfield Collegiate School in Ballyhackamore. She trained with Arts  Educational School in London, graduating with a Bachelor of Arts in Acting in 2018. Career. Graham made her television debut with a recurring role in season 3 of "The Sparticle Mystery". In December 2018, she landed her first major role as Iona in the 2020 Netflix fantasy series "The Letter for the King", an adaptation of the classic Dutch book by Tonke Dragt. The following December, she was cast as Bea in the 2021 Sherlock Holmes spinoff "The Irregulars", also on Netflix. In the meantime, she played Hanmei Collins in the Sky One action series "Curfew", and Kat in the  BBC One comedy-drama miniseries "Us". She joined the cast of "Doctor Who" for its thirteenth series (known as "") as Bel, making her debut in Chapter Three: Once, Upon Time.