Australian Competitions Club

http://www.moviehole.net/201143374-beastly

Thanks to Roadshow Home Entertainment, Moviehole has 10 copies of “Beastly” up for grabs on DVD.
(http://www.moviehole.net/wp-content/uploads/beastly.jpeg)
Kyle is the spoiled, shallow and incredibly popular prince of his high school. Entirely captivated and empowered by his own physical appearance, Kyle foolishly chooses Kendra, a witch masquerading as a high school student, as his latest target for humiliation. Unfazed by his cruel behavior, Kendra decides to teach him a lesson, she transforms him into someone as unattractive on the outside as he is on the inside. Now he has one year to find someone who can see past the surface and love him, or he will remain beastly forever. His only hope, a quiet classmate he never noticed named Lindy, may be his best chance to prove that love is never ugly.

http://www.moviehole.net/201143374-beastly

How to Win : Fill out your details below, and tell us “Which ‘Glee’ guest-star features in “Beastly?”
Answer: Neil Patrick Harris


TERMS AND CONDITIONS

Winners will be notified by mail. Their prize will be sent directly from either the film distributor or the website's promotions department - usually shortly before, or just after, the film/DVD/Blu-Ray release in particular's release. The judge's decision is final. Information provided by entrants will not be disclosed to a third party company - unless specified. Please only one entry per household. Please Note : Competitions on Moviehole, unless specified, are for residents of Australia (AU) only.

From, http://en.wikipedia.org/wiki/Neil_Patrick_Harris, accessed online 24th July, 2011, I believe that the actor is: Neil Patrick Harris.

Vanessa Hudgens was an actress in High School Musical.

I agree with snuggle1; I also think it is Neil Patrick Harris