Doctor Who's Steven Moffat has revealed new details about series finale ‘The Name of the Doctor’.
The showrunner promised that ‘The Name of the Doctor’ will “change the course of Who forever”.
"It’s full of surprises and questions that have never been answered in the history of Who, including the Doctor’s greatest secret,” Moffat claimed.
"We’ll also find out what makes his new companion [Clara, played by Jenna-Louise Coleman] so impossible and there’s a surprise that no-one has got right so far."
Coleman previously appeared on Doctor Who as spacefaring Oswin and Victorian governess Clara, with the Doctor attempting to unravel the mystery of her multiple identities in recent episodes.
Hinting at what to expect from the finale, Coleman teased: “All I can say is that Clara hasn’t just met the Doctor three times before.”