Is the Master back too? That’s certainly the suggestion, and with John Simm already scheduled to spend time in Wales for the shooting of a new film adaptation of David Almond’s Whitbread Children’s Award-winning Skellig there’s no reason why the Life on Mars star shouldn’t reprise his role.
We last saw the Master shot, and refusing to regenerate as he lay in the Doctor’s arms – and we all saw the ring that was picked up by a hand with painted fingernails that may or may not have been the Master’s wife or even Catherine Tate’s Donna Noble, who we know was following the Doctor…
A source said: "It’s great to have John back – he and David Tennant have a real nemesis chemistry."
Time will tell – remember this is merely a rumour, and no solid casting has been announced!