In the afterlife comics, Jughead (Cole Sprouse) is Patient Zero, Bustle points out . His body may be zombified, but his spirit is with Archie and his pals — is that why he's Riverdale's narrator? That would also help explain Jughead's odd statement about there only being three people in the Pop's booth when he was there with Archie (K.J. Apa), Betty, and Veronica (Camila Mendes). Or, Jason could still be Patient Zero, though there's got to be a connection between him and Jughead in there somewhere.