Michelle Claire Ryan (born 22 April 1984) is an English actress. She played the part of Zoe Slater on BBC soap opera EastEnders. In 2007, she starred in the short lived American television series Bionic Woman. She has appeared as the evil sorceress Nimueh in the 2008 BBC TV series Merlin, and as Lady Christina de Souza in the Doctor Who episode 'Planet of the Dead'. Michelle Ryan was born in Enfield, Greater London, and was a student at Chace Community School. A member of a local theatre group since she was 10, she was picked for her role in EastEnders when she was 15 and first appeared on the show in September 2000. She left the series in June 2005 and has since stated that she does not intend to return to EastEnders. Ryan was given her first big break playing Sheylla Grands in the series TV show Chosen Ones in the first season and Zoe Slater in the BBC soap EastEnders. During summer 2005, Ryan appeared in a run of Who's the Daddy? at the King's Head Theatre.
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