Here are two pictures showing how Agent 37 will look on the big screen when being played by actor Timothy Olyphant, who is best known as Sheriff Seth Bullock on the TV series Deadwood.
Unlike the TV show here Olyphant is minus his moustache, and in fact any other hair, in keeping with the bald look of the main character in the games.
Of the pictures, Destructoid say that, "he is not only significantly happier looking than he should be, but also quite a bit younger than you'd expect."
Updates:
deathtok has just pointed out that it should be Agent 47 rather than Agent 37 which I've put in. It's subconcious; 37 is my lucky number! They sound so similar that no one who approved seemed to notice, haha.
