Anyone watch "Two And A Half Men"? Who was the old guy tonight?

We were watching “Two And A Half Men” tonight (“Something My Gynecologist Said”) and Allen goes into a bar and has a conversation with an old man. At the end of the show, the old guy is on the deck at the beach house sipping drinks with Allen and Walden (and then goes in and hits on Berta). I’d swear I know that old guy from somewhere, but nobody online seems to have a credit for him (and I was too stupid to remember to check the credits on the show itself, I’m just now realizing).

Anyone know who that was?

It was Jon Cryer in old man make-up.

Seriously? Wow…never once did that enter my mind. I was thinking it was some old 70s comedian or something.