Johnny Depp, no explanation needed, since he's pretty much so the modern-day Rudolph Valentino.
Trent Reznor...I still think he's hot.
Criss Angel... ... ...whew. *fans self*
Hugh Laurie isn't really hot in a pretty-boy kinda way, but he does have lovely blue eyes and is quite multi-talented.
And yeah, I'll admit that Alan Rickman has a sexy voice.