Michelle Ryan is an English actress. She started her acting career in the early 2000s. She first became known for her role as Zoe Slater on EastEnders. She next had notable roles on the TV shows Mansfield Park, Jekyll, Bionic Woman, and Merlin. She went on to star as Lady Christina de Souza on Doctor Who. During this period she also appeared in the films Cashback, I Want Candy and Flick. In the 2010s, she starred in the British films Girl Walks into a Bar, Cockneys vs Zombies, and Andron. Her most work on television was on Death in Paradise.