Is it wrong to be attracted to older guys?

I'm 16 and I've always been attracted to older guys-about 30+. They're never ugly, they're always somewhat cute, even if they have some gray hair. I'm never going to date a guy that much older than me if I'm this young, because thats just not right. But is it normal to be attracted to older guys like that? They are usually guys that are the age of Hugh Laurie, and look like him too. Kinda gray, but still young looking. That normal?