Today we have the latest news for the upcoming 4th season of Riverdale straight from the SDCC Panel! To start the season off right, the first episode will be a memorial to Luke Perry and his Riverdale character ‘Fred Andrews‘. The panel also revealed that the show would be honoring the request of Luke Perry to have Shannon Doherty on the show as she will be appearing in the first episode of the season. In addition 80’s movie icon Molly Ringwald will be reprising her role as Archie’s mother this season as well. Check out the season 4 trailer as well as the Entertainment Weekly SDCC pre-panel interview in the players below and share your thoughts AFTER THE JUMP. Riverdale returns to kick off its 4th season on Wednesday, October 10th at 7pm Central on The CW!