Karen Gillan: 'I'll never return to Doctor Who' | The List »The actress - who plays the Doctor's assistant Amy Pond - has ruled out returning to the programme in 2013, when the show will celebrate its 50th anniversary and she says she feels she's learnt a lot from the show. She said: "I decided there'd be no cameo returns after I leave. I want the impact of the end of the Pond era to remain strong. I don't want to spoil it by coming back a few episodes later to say hello. "I feel like I've grown up and that I can now handle situations a bit better because I'm a more assertive person. I'm starting to feel more like the person that I want to be"....
