I did a play once where a reviewer said, 'Martin Freeman's too nice to play a bad guy.' And I thought: 'Well, bad guys aren't always bad guys, you know?' When I see someone play the obvious villain, I know it's false.
I'm very proud of 'The Office' - it was one of the best things I'll ever do. But you do become a slight victim of your own success in the sense that people think that's you, that's what you are, and that's what you'll play forever.
To my mind there are not enough things that show the Nazis as human, as smart people, charismatic people, who are not inhuman naturally. But who are able to be fantastically inhuman when they choose to be.