Chevy Chase by Steve Granitz/WireImage.com, Sally Field by Justin Stephens/ABC
Saturday Night Live
National Lampoon Vacation
er turned... well, subject of a so-so biography
has booked a multi-episode run on ABC's
Brothers & Sisters
, says the
. Chase will play
Stan Hirsh, an old high-school sweetheart of
's Nora. Treat Williams, the professor guy, Danny Glover (coming later this season), Chevy... yeesh, that Nora is one wanton widow.
Chase's previous guest-starring gig was as
Law & Order
's ersatz Mel Gibson.