I want to start talking to this guy I kind of have a crush on, because I want to get to know him. Would he find it weird to find this strange girl who's never talked to him before talking to him? I mean, we have mutual friends. 

Anyway, do you think it would be weird?

What I should also add is that he's kind of a cynical and sarcastic guy so that's why I'm afraid of just randomly going up to him and talking to him. He might think (or say) why the HELL is this freakish girl talking to me?! Haha

Those kinds of guys are usually the most insecure or emotional so... hmmmm yes it might be dangerous to approach just like that so you might want to join the conversation when he and your mutual friends are talking about something and just join and slowly see if you have a chance to talk to him casually and then see how he reacts and go from there... However, you have to remember to always be yourself. Do not try to be someone else only to impress him...trust me that doesn't really work well... plus if he is this kind of clown of the class guy then he is not even being himself!!