I don’t think I’m alone when I say that I absolutely adore the show Brothers & Sisters. Great cast, great storylines, great Rob Lowe… well, you know what I mean. Anyway, time to bring in some guest stars to liven things up. Be on the lookout for former Dharma & Greg cast members Jenna Elfman and Susan Sullivan to make an appearance. Elfman played kooky earth-child Dharma to Sullivan’s uptight socialite, Kitty Montgomery. This time around, they’ll be playing mother and daughter rivals of the Walker clan. Sullivan plays Miranda Jones, while Elfman is a pregnant Lizzie Jones-Baker. The fun is underway when they take part in a rematch of a family game night, complete with new step-sis Rebecca. The episode will air April 15th.