Reddit, a friend recently met Rob Dyrdek and came back saying he was "not what he expected". What celebrities portray themselves completely opposite of who they actually are?

A friend of mine went to rob Dyrdek's fantasy factory, and came back saying the guy was an all around ass. I guess Rob Dyrdek had just fired everyone and had their stuff in the middle of the Fantasy Factory. He told my buddy he could take what every he wanted, but he did not. as described by my buddy Rob Dyrdek was a big "ass douche." I am just wondering what celebrities come off nice or outgoing but turn out to be completely different.

As a second example i have heard that the guy from Extreme Home Makeover is a dick.