Thaddea Graham: Thaddea Graham. Actress: Us. Thaddea Graham was born on 29 March 1997 in China. She is an actress and composer, known for Us (2020), The Irregulars (2021) and Doctor Who (2005).
Known For: Us (Kat), The Irregulars (Bea), Doctor Who (Bel), Wreck (Vivian Lim)
