Shannen Doherty and Brian Austin Green look back at 'Beverly Hills, 90210's alleged behind-the-scenes drama on her 'Let's Be Clear' podcast. The actors, who played Brenda Walsh and David Silver on the hit '90s teen drama, recall alleged dust-ups on the set, including when Shannen was reportedly fired in 1994 after four seasons. Brian also reflects on his past relationship with co-star Tiffani Thiessen, sharing his regret over how he reacted when she filmed sex scenes with other male stars.