Jason Priestley has opened up about his grief following the death of his former co-star Shannen Doherty, who passed away from cancer at the age of 53. Reflecting on his own mortality, Priestley shared that the loss of Doherty and their mutual friend Luke Perry, who died in 2019, has profoundly impacted his outlook on life, particularly as he approached his 50th birthday. He praised Doherty for her openness about her health struggles and for using her platform to help others, noting that her passing was a significant shock despite her long battle with cancer. Priestley fondly remembered their time working together on 'Beverly Hills, 90210' and expressed gratitude for the time they spent in recent years. He emphasized that he felt they had resolved any unspoken issues before her death, highlighting his admiration for her strength and tenacity during her illness.