Don't turn around....

Well, I think that episode of Doctor Who showed exactly how to do "evil" - Gabriel Woolf's voice and his calm delivery an object lesson to Roger Lloyd Pack. And the orchestral score made it feel like a feature film in places.... the folk/acoustic motifs are very evocative, even if they are cribbed from Firefly/Serenity.

Good supporting performances from the guest cast, but, Mr Woolf - that was scarier than your performance in "Pyramids of Mars", and that's a real achievement!