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Riverdale's Season 4 premiere will honor Luke Perry following his death earlier this year. 1 / 8
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The episode will feature a guest appearance by Perry's longtime friend, Shannen Doherty. 2 / 8
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Doherty starred on Beverly Hills, 90210, playing Brenda Walsh opposite Perry's Dylan McKay. 3 / 8
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Doherty's guest role was announced by Riverdale showrunner Roberto Aguirre-Sacasa at SDCC. 4 / 8
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According to Aguirre-Sacasa, Perry had long wanted Doherty to appear on Riverdale. 5 / 8
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Doherty's role in the Season 4 premiere is described as 'pivotal, super-emotional' and 'very impactful.' 6 / 8
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'We wanted to make it as special as possible.' 7 / 8
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Riverdale returns for Season 4 on Wednesday, Oct. 9. 8 / 8
CBR
