K.J. Apa Archie Andrews Actor Lili Reinhart Betty Cooper Actor Camila Mendes Veronica Lodge Actor Cole Sprouse Jughead Jones Actor Marisol Nichols Hermione Lodge Actor Madelaine Petsch Cheryl Blossom Actor Mark Consuelos Hiram Lodge Actor Casey Cott Kevin Keller Actor Skeet Ulrich F.P. Jones Actor Mädchen Amick Alice Cooper Actor Vanessa Morgan Toni Topaz Actor Charles Melton Reggie Mantle Actor Ryan Robbins Frank Guest Star Sean Depner Bret Guest Star Roberto Aguirre-Sacasa Executive Producer Greg Berlanti Executive Producer Sarah Schechter Executive Producer Jon Goldwater Executive Producer Chell Stephen Director Ted Sullivan Writer