Way too easy man, Ethan Thomas from Condemned 2: Bloodshot; his look is that of an unattractive, mean, homeless, alcoholic, oh wait he is! This look suits him because he IS a mean, homeless, drunk, who also has violent schizophrenia, and he also (appearently) smells like shit.
Picture at: http://media.giantbomb.com/uploads/0/151/177617-ethan_large.jpg
Picture at: http://media.giantbomb.com/uploads/0/151/177617-ethan_large.jpg