The 11th Doctor, who will make his first outing as the Time Lord on BBC One tonight, said that he can't praise Moffat highly enough.
However, he added: "Don't get me wrong, Steven's a peculiar man! We have a strange relationship in the press where we lambaste each other. His last one was that I'm in a constant state of wonder at my own limbs, so I've been calling him peculiar."
Of his co-star Karen Gillan, who plays his companion Amy Pond, Smith, 27, said she was as "mad as a box of cats". "She's pretty fly, isn't she, old Pond?" he said, before giving his opinion on his predecessor David Tennant. "Frankly I couldn’t have wished to inherit the mantle off a nicer man," he said.
While Russell T Davies's Dr Who "sat nearer the Superman end of fantasy", Moffat has said that his is more "Tim Burton". Smith agreed, adding: "There's a real sense of the fairytale about it. Russell made it the most popular show in the country, but I think Steven will make it the most magical. Even though I must make it very clear that he's peculiar."
Doctor Who is on BBC One tonight at 6.20pm.