Sometime Grey's Anatomy surgeon Brooke Smith has scored a four-episode arc on Showtime's high-sterical comedy Weeds, my dealer confirms.

The actress - also a fixture on the final season of Crossing Jordan - will play Valerie, the ballsy ex-wife of Martin Donovan's Peter who strikes up a close kindred-spirit-esque friendship with Nancy (Mary-Louise Parker). She'll first appear midway through the show's third season, which debuts Aug. 13.

BTW, I was just kidding about the dealer thing. Like he'd ever give me scoop.