Shannen Doherty to guest star on 'Riverdale' for Luke Perry tribute episode https://t.co/Oo2cFKqmTO— Entertainment Weekly (@EW) July 21, 2019
-Shannen Doherty is coming to Riverdale for a 1 episode stint!
-She will help pay tribute to Luke Perry in the Season 4 premiere. Her relation to Lukes character is unknown.
-They always planned on getting Shannen to come onto the show at some point but with Lukes passing this seemed fitting.