'90210''s New Cast Members

"The Insider" has the latest... The world's most famous zip code is quickly filling up! ET confirms that two new cast members are joining the "Beverly Hills, 90210" spin-off. JESSICA WALTER , who played the family matriarch on the critically acclaimed "Arrested Development," is set to play Tabitha, grandmother to newly announced cast member SHENAE GRIMES ("Degrassi: The Next Generation") and mother-in-law to LORI LOUGHLIN 's ("Summerland") character. Also newly announced, "Dirt" star RYAN EGGOLD has been tapped to play a teacher -- who also happens to be named Ryan. The as-yet-untitled show will, like the original, center on a family (this time it's the Mills instead of the Walshes) who moves from the Midwest to Beverly Hills and will revolve around the clan's two teen kids -- a boy and a girl -- who are the same age. (link)