27. Duke Nukem (Duke Nukem, Apogee, 1991)
Cross Ahnult the Terminator with Vanilla Ice, and you get a pretty fair physical resemblance to the talented Mr. Nukem. Originally employed by the CIA to save earth from Dr. Proton, Duke eventually evolves into a hypermasculine, egotistical, womanizing tough guy. His missions usually involve killing aliens that invade Earth, and he's known for his dual talents at kicking ass and chewing gum (though he's usually out of gum).
On a side note, Duke is scheduled for a comeback in 2011.