While no official reason has been given, Variety first reported from a source that the exodus may have been the result of "interference from two of the show's lead actresses;" while another source claims the writers had issues with an executive supervising production.
BH90210: L-R: Gabrielle Carteris, Tori Spelling, Brian Austin Green, Jason Priestley, Shannen Doherty,[...]
Gabrielle Carteris Archives
Original Beverly Hills, 90210 cast members Jason Priestley, Jennie Garth, Ian Ziering, Gabrielle Carteris, Brian Austin Green, and Tori Spelling are reuniting for the six-episode summer event series 90210 Conceived by Spelling, Garth, and series writers Mike Chessler and Chris Alberghini, the serialized drama work the casts' real lives and relationships in the storylines – with the[...]