And I don't think Miliband is capable of turning it round in a useful direction.' He runs his hand through his vaguely floppy hair. 'They decided they had too many brown- haired boys in the cast, so they asked me to dye my hair,' he explains.Only now I'm a bit jaded.' Too jaded to join in, perhaps (and too busy 'Downtonating' as he puts it on Twitter), but he's excited by the fact that global protests are going on. It's largely naïve, and it's hijacked by forces that can do no good at all and are quite brainless in some respects, but the core is doing something interesting, which is shifting the debate and moving politics into a different arena.' Does he have strong political feelings?'Politics as they currently exist, I have no truck with.
But something needs to happen and it's sort of happening, so I'm interested in that' He breaks off.
'Too much coffee, sorry.' He doesn't carry a card for any political party. Because if the people at the top of the party change direction, you're a bit stuck.
Dan Stevens is a bona fide wonderboy - somewhere between Hugh Grant, except wholesome, and Robert Pattinson, except, you know, flesh and blood.
Gentlemanly, considerate and ever-so-slightly pasty, he is the perfect national export - as English as a thatched tea towel.
Hollywood already has its teeth into him ('They said I could have the part if I lost a stone and a half') and, at 29, he is shaping up as a lovely male lead, a committed family man and a bit of a brain to boot. He was in Tahrir Square for the duration of the Arab Spring.
At that time Twitter was able to get messages out quickest, because media outlets and lines of communication were very limited, so I was sat at home in North London, obsessively following what was going on on Twitter and Al Jazeera, and helping out some contacts and friends of Khalid's in Cairo...' Soon Dan is telling me how in his youth he was an anti-capitalist.