David Tennant / Credit: BBC
David Tennant was cautious as he panicked he may have forgotten how to play his role as the Doctor in 'Doctor Who'.
The 42-year-old actor has admitted he was nervous before filming began for the 50th anniversary episode - airing this Saturday - where he worked alongside 11th Doctor Matt Smith.
He said: "It's been really good fun. I sort of thought, 'Oh, this will be great, I'll say yes to this...' And then of course, as the day approaches it's a slightly odd sensation because then I think, 'Well what if Matt feels like I'm stepping on his toes? Or what if I can't remember how to do it?'
"There's lots of things you become slightly nervous about.
"But because Matt and Jenna[-Louise Coleman] have been so up for it, and so welcoming and generous, it's been a really nice experience actually."
Though David insists he only knew he'd be a part of the special weeks before filming began, he thought it might be a possibility even before he left the show in 2010.
He added to SFX magazine: "I was aware when I left that the 50th anniversary wasn't very far away. And there's that thing with 'Doctor Who' where the moment you get the job, people are asking when you're going to leave. The moment you leave, people ask when you're coming back. It's a possibility that's always being visited upon you by other people."
Tagged in David Tennant Matt Smith