K.J. Apa Archie Andrews Actor Luke Perry Fred Andrews Actor Ashleigh Murray Josie McCoy Actor Cole Sprouse Jughead Jones Actor Lili Reinhart Betty Cooper Actor Mädchen Amick Alice Cooper Actor Camila Mendes Veronica Lodge Actor Marisol Nichols Hermione Actor Madelaine Petsch Cheryl Blossom Actor Molly Ringwald Mary Guest Star Hayley Law Valerie Guest Star Roberto Aguirre-Sacasa Executive Producer Greg Berlanti Executive Producer Sarah Schechter Executive Producer Jon Goldwater Executive Producer Dawn Wilkinson Director Britta Lundin Writer Brian E. Paterson Writer