I nearly listed Robert Carlyle myself.
I just finished watching him in The State Within where he was easily the best actor in it by a mile.
This guy deserves a mention too..
John Simm
Been following his career since Human Traffic (I can't believe that was a decade ago already) It's ironic really that i'm a huge Doctor Who fan and I think it's probably the worst role i've seen him play because he's been brilliant in everything else i've ever seen him in, buy I'll reserve judgement for the time being though and see if he's any better in the upcoming specials being shown over the Xmas & New Year period.