The decision for any actor or actress to appear naked, whether on screen, on stage, or in photographs, can sometimes help, sometimes hurt, and sometimes not make any difference at all to the performer's career. In the case of Lindsay Lohan, her freckle-baring photos in New York Magazine may reinforce the public's perception of her as a "bad girl." We saw a very different reaction when "good guy" Daniel Radcliffe, better known as Harry Potter, stripped down for a production of the stage play Equus. While some decried the example he was setting, young women reportedly attended in droves for the opportunity to admire his (acting) form. From a career standpoint, he widened his future possibilities far beyond the family market.

On the big screen, Viggo Mortensen's deadly naked spa duel in Eastern Promises caught everyone's eye. Playing a "bad boy" with a good heart, Mortensen's willingness to display every inch of his physique only expanded his appeal. His performance earned him a nomination for an Academy Award as Best Actor. Portraying both "bad boys" and "good guys," none of the other Best Actor candidates appeared in the buff in their nominated films, though all have in the past.

As we did yesterday with the women, today we offer a selection of five Academy Award-nominated men. All have appeared naked on the big screen, either this year or in the past, with their most revealing appearance noted. Whose career benefited the most from their willingness to bare all?