“John is still, he’s stoical, he’s very watchful, he’s very very strong-willed, a strong-minded person, he’s not easily flappable.

You know he’s an alpha male, he saves lives and can kill people; like if it wasn’t for Sherlock he’d be the most impressive man in the room, you know because he’s knocking about with someone who’s even more fucking alpha than he is. All of which is interesting to play because you’re playing someone who is very much their own man, they’re very strong.

He doesn’t do a lot of vocal flourishes, he doesn’t do a lot of showing off, it’s just he’s still in a way that I envy about some men. He’s got a real strength to him.”