塔德亚·格雷厄姆,Thaddea Graham (born 29 March 1997) is a Chinese-born Northern Irish actress. She is known for her television roles as Hanmei Collins in the Sky One series Curfew, Iona in the Netflix series The Letter for the King, Bea in The Irregulars, also on Netflix, and Kat on the BBC One comedy-drama Us.