I mean, really. Look.
He looks like the kind of genuine supervillain who has really scary plans that involve mercilessly killing lots of people for some reason that only he and his many mother issues can discern. I think it's the hair.
When I pointed this out to my better half, she agreed, but said that she thought Colin Farrell looks more like one. I'm not sure I see it myself.
What do you think? To be fair, this is probably one of the nicer Colin Farrell pics, I recommend you use Google Images to find the more evil stuff... I only posted this one because it's on Creative Commons and I'm paranoid about copyright!
I should probably make a post other than random stuff soon. Stay tuned ;)