Michael Vartan is a spectacularly sexy actor who can act his way through any script and do it well. There are so many good-looking men who can't act, but Vartan sure as hell ain't one of them.
Whether it be in Alias or a movie, Michael Vartan always stands out (although that is because I'm always looking at him). His acting skills are great.
Vartan also does comedy well, as he proved in the recent Jane Fonda flick Monster-In-Law (and he took his top off) and he has a good rapport with everyone he acts with. Despite being separated, Vartan and Jennifer Garner handle their scenes together brilliantly.