Zach Galifianakis
The scruffy beard is simply part of Galifianakis’ character in most of the films he's in. In many of his most popular roles, he has totally rocked the attention-grabbing facial hair. When he shaves his beard, he becomes nearly unidentifiable to fans. If he ever wanted to go incognito, hacking his facial hair off just might be all the disguise he needs.