Michelle Ryan has been cast in the first Doctor Who 2009 special, Planet of the Dead. She was at first rumoured to be appearing in the fifth series of Doctor Who but was yesterday spotted filming Planet of the Dead in Cardiff with David Tennant. The actress who has previously starred in Eastenders will reportedly play a character called Lady Christina De Souza who joins with The Doctor and takes a bus trip into danger. There are also rumours that Lee Evans, a popular British comedian and actor, will be appearing as a character named Malcolm in the special. Planet of the Dead will be broadcast on BBC One and on the BBC HD channel this Spring, and the latest news regarding the Doctor Who special will be posted when released.