Matt Smith Interview Doctor Who 50th Anniversary & New Companion Matt Smith greeted long lines of devoted and delighted Doctor Who fans at last weekend's Entertainment Media Show. During a fascinating question and answer session Matt spoke about everything from landing the biggest role in TV science fiction to the recent departure of Karen Gillan & Arthur Darvill . Matt shared his favourite Doctor and talked a little about working with new companion played by Jenna Louise Coleman . He ruled out a return for The Ponds in any future episodes but hinted that Steven Moffatt has yet to decide whether or not the 50th anniversary episode will indeed feature a return for any of the past Doctors . You can read the full transcript below: What do you think is the magic of Doctor Who that's allowed it to endure for so long? Well for starters you have a show that isn't bound by space or time. It's not bound by logic, genre or place. So you can tell any story. Add to that, you have a main character that comes into dangerous situations with like a boiled sweet and a toaster and solves it. He still manages to wear a fez in the middle of it. There's the magic of time travel, it's such a brilliant televisual conceit. To regenerate the main character was also very very clever. That came about because William Hartnell couldn't carry on for another season so they had to change it up and