Mean But Funny

Let’s play a little game. Trust me it will be fun! I pissed my self laughing when I read this. A Certain someone form The OC had these lovely thoughts to say to there mother.

“You’re so f**king retarded! What idiot can’t put a f**king key in?”

“You’re so retarded! Everyone knows how to work an elevator?!"

It’s a sort of thing I would say to someone but not my mum, maybe my brother or sister. So who From The OC would say these heart warming words??? And I’m looking for the actor or actresses name.