Thaddea Graham
Personal details
  • Born:
    • Birthday: 1997-03-29
    • Born Place: China

Thaddea Graham

Thaddea Graham is a Northern Irish actress who was born in China on March 29, 1997, and was raised in County Down, Northern Ireland after being adopted at the age of one. She is an alumna of the Arts Educational Schools in London, where she graduated in 2018 with a Bachelor of Arts in Acting. Her career, which began in 2014, features prominent roles across various television series. She is well-known for her work on the Sky One series Curfew (2019), the Netflix series The Letter for the King (2020), where she had a major role as Iona, and as Bea, the leader of the street gang, in the Netflix Sherlock Holmes spinoff The Irregulars (2021). Other notable television appearances include the BBC series Us (2020), a recurring role as Bel in Doctor Who: Flux (2021), the main cast of the horror-comedy Wreck (2022-2024) as Vivian Lim, and playing the character 'O' in the fourth season of Netflix's Sex Education (2023). In film, she is a cast member in the 2025 psychological thriller After the Hunt, directed by Luca Guadagnino, where she plays the role of Katie. She was also included in the 2023 Screen International Rising Stars Ireland list.

Person History