We turned the lights off to save money, so you can't really see it. It's the same show. Hopefully, there are lots of laughs and lots of great personal stuff, but it is explicitly a darker season [4 of Sherlock Holmes].
Mark GatissWe made our Moriarty very different to [Conan] Doyle's. He's Irish, and he brings all his charm, his twinkle and his humor to it while he's also terrifying.
Mark Gatiss