Bear with me, I have been catching up on I-player.
I do not see the attraction of Richard Armitage (when playing Lucas anyway, I'm sure he's perfectly nice in real life). He is all pale and greasy looking, has tattoos than look like biro doodles, and also turns out to be an idiot/embassy exploder.
But Harry is nice, defends the realm, wears nice suits and loves Ruth. He also poisons evil politicians. He is much more attractive. IABU?