The Doctor From Gallifrey 

Freema Agyeman has ruled out a return to Doctor Who for the 50th Anniversary special. 

In an interview with Crave Online she said: "I'm doing two things for the 50th but nothing to do with being in the drama. I got misquoted hideously once saying that there are some rumblings going on about being involved in the 50th in terms of the drama. It's not. It's in terms of conventions and interviews and things like that, which we're all doing stuff to promote the 50th. We have to. It's the Doctor Who family and we want to." 

So there you have it, no Martha for the 50th Anniversary special. Which we can't say is a huge surprise, we think it's unlikely that companions will come back, although there's still a chance of a Multi-Doctor episode! 

[Source: Digital Spy]