Coleman told Radio Times:
“In the beginning we see a Clara in the 60s, 70s and the 80s so there are a lot of costume changes, which I love. Always one for a bit of dressing up, me. Love a red carpet."
“Richard E Grant is back with his evil Great Intelligence, the Doctor’s greatest secret is revealed, all of his friends rally round to protect him and we finally understand why the Doctor has met Clara so many different times.”