Agyeman was born on 20th March 1979 in London. She is best known for her role as Martha Jones in Doctor Who. She also appeared as Martha in 3 Torchwood episodes, Reset, Dead Man Walking & A Day in the Death and in BBC Radio4 story, Lost Souls. She has also appeared in Doctor Who as Adeola Osohdi in the episode, Army of Ghosts. She has also appeared in Silent Witness, The Bill, Mile High, Crossroads & Little Doritt.