Thaddea Graham

Thaddea Graham is a Northern Irish actress known for her roles in various TV series. She gained recognition for her performances in the Sky One series Curfew (2019), the Netflix series The Letter for the King (2020), The Irregulars (2021), Sex Education (2023), the BBC series Us (2020), Doctor Who: Flux (2021), and Wreck (2022). Graham was included in the 2023 Screen International Rising Stars Ireland list. She was adopted from an orphanage in Changsha, China and raised in County Down, Northern Ireland. Graham attended Killinchy Primary School and later Bloomfield Collegiate School. She studied acting at the Arts Educational School in London and graduated with a Bachelor of Arts in Acting in 2018. Graham made her television debut in season 3 of The Sparticle Mystery and gained her first major role as Iona in The Letter for the King.