K.J. Apa Archie Andrews Actor Lili Reinhart Betty Cooper Actor Camila Mendes Veronica Lodge Actor Cole Sprouse Jughead Jones Actor Madelaine Petsch Cheryl Blossom Actor Skeet Ulrich F.P. Jones Actor Mädchen Amick Alice Cooper Actor Vanessa Morgan Toni Topaz Actor Sean Depner Bret Guest Star Sarah Desjardins Donna Guest Star Malcolm Stewart Professor DuPont Guest Star Roberto Aguirre-Sacasa Executive Producer Greg Berlanti Executive Producer Sarah Schechter Executive Producer Jon Goldwater Executive Producer Tessa Blake Director Aaron Allen Writer