According to IMDB, Joey Slotnick will be returning to Nip/Tuck this season (Season 4, Episode 10).... Nip/Tuck fans will remember him as Meril Bobolit from Season 1.
His character in Season 1 was definitely one to remember! I can still visualize him giving mouth to mouth to a dog after a hair transplant went bad!! ;)
Image courtesy of Google