I actually saw him in real life, and he is very very tiny. Slight figure, nice eyes though big clear blue, had a beard. I was late for class and was sprinting between my flat and class, trying to run across the street and almost ran into him. I think he thought I was a crazed fan or something, because he turned around and gave me a look. I didn't recognize him and gave him a nasty look right back, lol.
He was doing a play with Neve Campbell and Kristen Johnson (Third Rock from the Sun), called Love Song and all the actors were walking in a big group together...just strolling around London I guess?