No demogorgons to worry about at the CW. Shannon Purser — known to greater audiences as the beloved Barb from Stranger Things — has joined the cast of Archie reboot Riverdale as Ethel Muggs. Purser’s character will appear on the teen drama for “at least†three episodes, where Ethel will be in a “romantic relationship with someone very different†than her crush, Jughead (portrayed by Cole Sprouse) in the original comics. She’ll also befriend Veronica and Betty after they “team up for a revenge plot†against Archie’s main rival, Reggie Mantle. We’re assuming this revenge will involve shotgunning some beers at Moose Mason’s house and getting Reggie to sit on a diving board all alone on an eerie evening. “Can I be super real? Didn’t think a girl with my body type could get this far,†Purser tweeted after the casting news was revealed. “I’m so thankful and excited. Much love to you all.†Riverdale will premiere this winter.