It was Danny Strong (Jonathan) from BtVS.
Yeah, now Christian and Sean can fight cellulite from within the belly of the beast...LOL!
Ooooooh. I missed that WAS him! But you're right!
Danny appeared on the season finale of Nip/Tuck on December 12th. Tune in to FX Tuesdays at 10 PM PST/EST for Nip/Tuck.
He has matured a bit and I didn't recognize him! I'll have to go back and watch that again!