I don't recall seeing this game on the community before but it is one I enjoy, so here goes...

I am thinking of a famous person or character, and you can only use yes or no questions to try and figure out who it is. 

I'll do my best to update this opening post with all the questions and answers as we proceed.

Answers 

Are you male? Yes

Are you a fictional character? Yes

Do you have a beard? No

Do you live in a city? No

Are you a super hero? No

Do you have blonde hair? No

Are you still active today i.e. not dead or retired? Yes

Are you James Bond? No

Are you white (skin colour)? Yes

Do you fight baddies? Yes

Do you work as part of a team? Yes

Dennis the Menace? No

Does he wear a disguise? No

Can he use magic? Yes

Harry Potter? Yes!