The two Doctors, David Tennant (the tenth Doctor) and Matt Smith (the eleventh Doctor), discuss life as a Time Lord… in this video posted by BBC.
“I think it’s quite interesting actually how our Doctor’s seem to get on quite well,” says Matt Smith.
“They bicker a bit but I think they quite enjoy each others very presence,” agrees David Tennant.
“You gave me good advice,” says Matt Smith. “Advice that I’d pass on. Not advice that I could repeat… But what you did say was that I’d have the most fun ever and, you know what, you were right.”
“The show has a particular place in people’s affections so when you’re the face of it, it’s an usual set of pressures. 89% of which are wonderful, lovely and positive things,” adds David Tennant.