Wentworth Miller, Michael Scofield from Prison Break may be hot and tough; but let´s face it: he always solves his problems by using information and analysis… that´s quite nerdy.
Zachary Levy, who plays Charles “Chuck” Bartowski is capable of making a relationship believable with agent Sarah Walker, played by ultrahot Yvonne Strahovsky, in TV Action Show Chuck.
Adam Brody playing Seth Cohen was a precursor, in The OC´s when he managed to get Rachel Bilson´s Heart and/or Summer Roberts (Remember they dated both on and off screen).
Leonard Hofstadter managed to date Penny in television hit sitcom The Big Bang Theory. And let´s face it: Kaley Cuoco is way hotter than Johnny Galecki.
And many many more examples… do you know any examples? Let us know in the comments.