Zach Galifianakis has had a lot of success in hit comedies, such as Due Date and The Hangover. A lot of his appeal is due to his laid-back, irreverent, complete nonsense style, which the actor seems to share with his characters. * Zach hosts a hilarious online talk-show called “Between Two Ferns,” where he has interviewed high profile guests such as Bruce Willis, Natalie Portman, Sean Penn and Ben Stiller, and put them in funny situations. The latest celeb to sit in Zach’s chair was Jennifer Aniston, and she was credited as “second guest.” Imagine that…