Doctor Who: 20 Things You Didn't Know About Heaven Sent
11. The Veil Was Played By A Familiar Face
Apart from a brief appearance by Jenna Coleman as Clara, the only actors in Heaven Sent are Peter Capaldi and Jami Reid-Quarrell.
Reid-Quarrell plays The Veil, and does a great job bringing the silent menace to life. But this wasn't the first time Doctor Who audiences had seen his work.
In fact, he appeared earlier in this same series, playing Colony Sarff - an agent of Davros who was made up of snakes - in The Magician's Apprentice/The Witch's Familiar.
Playing two memorable villains in one series. That's got to be some sort of record.