Mycroft Holmes (Mark Gatiss) and James Moriarty (Andrew Scott) - This photo just confuses me to no end, because this does not look like Mark and Andrew interacting while in costume. This is Mycroft and Moriarty shaking hands.
“Even though he’s an international super-villain, I think he takes great pleasure in what he does. So it was important that I really enjoyed it and we got the sense that Moriarty is really playful about it and not serious. And then sometimes you think that he really is serious about it…sometimes he’s massively scary and sometimes he’s just charm itself.” - Andrew Scott