Glanville230.jpgEddie Cibrian's ex, Brandi Glanville, has signed on as a new cast member on Bravo's Real Housewives of Beverly Hills.

She has already started filming.

A source tells E! Online that all of the original cast members will return ... and that Glanville was not the network's first choice!

"Bravo actually had an offer out to Robbie Williams' wife, actress Ayda Field, but it didn't work out because of contractual issues," the source said. "That left an open spot for Brandi, and they are excited she is joining the cast. Everyone is getting along fine ... for now."

See who else the source says will be appearing on the show after the jump!