"I always thought dinosaurs and the science of ‘Who' would be funny," Smith said.
In "A Town Called Mercy," airing Sept. 15
"I am a huge fan of Westerns ... so it was kind of like living out a boyhood dream," Darvill said.
In "The Power of Three," airing Sept. 22
"There's never been an extra-terrestrial incursion like this one," Moffat teased.
Weeping Angels (and River Song!)
In "Angels Take Manhattan," airing Sept. 29
"They've become BIGGER and better than ever," Gillan teased. "I'm giving you a clue."
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