Michelle Ryan in Doctor Who Special?

Michelle Ryan has been spotted on the set of the next Doctor Who special "Planet of the Dead", scenes of which were being filmed at the National Museum of Wales in Cardiff.

This gives some credit to the rumors flying around that she was going to be the next companion. According to Russell T Davies, each of the four special episodes this year will have their own companion. Other favorites to play the Doctors companion next years are Lilly Allen and Kelly Brook.