04/28/2008 at 12:00 AM EDT
It's getting to be a full house at Beverly Hills, 90210
, as another cast member for the CW's spinoff is revealed.
PEOPLE has confirmed that Lori Loughlin
) is slated to play Celia Mills, wife of Beverly Hills High's new principal, and mother to Annie, a role that Hilary Duff
was reportedly approached to play
. TV Guide first reported
She'll also join two younger costars, Dustin Milligan
's AnnaLynne McCord
on the show.
Your move, Jennie Garth