New Brothers & Sisters show-runner Greg Berlanti is already making good on his pledge to lure some of his Everwood faves to his new gig. An ABC source confirms that Treat Williams will play a love interest to Sally Field's recently-widowed matriarch in late October. As of now, Williams is booked for one episode, but I'm told his stay could be extended.

Next up: Emily VanCamp as Patricia Wettig's daughter? (Hey, Greg said it!)