How Is Sabrina Alive in ‘Riverdale’? Details on the ‘CAOS’ Crossover

In Episode 4, titled “The Witching Hour(s),” Sabrina helps Riverdale’s Cheryl Blossom (Madelaine Petsch) with a dangerous spell. Kiernan spoke to TVLine about Sabrina’s appearance in the five-episode Rivervale event. The CAOS actress shared, “I think it was a justifiable arrival, given the fact that she died. I know anything can happen, but the more magic involved, the better.”