Would have been perfect...
...in Trainspotting. I'm not very familiar with his other work, but I just watched Trainspotting again recently, and it occurs to me that, based on his performance as Cassidy in "Preacher" (not as a vampire, of course, but with his demeanor and his accent -- and yes, I know Cassidy is Irish and the movie took place in Scotland), he would have fit right in with the rest of the characters in the movie. Just an observation...