Riverdale Cast Abby Ross Camila Mendes Casey Cott Daniel Yang Drew Ray Tanner KJ Apa Karl Walcott Lili Reinhart Madelaine Petsch Nicholas Barasch Shannon Purser Vanessa Morgan – Finale (Our Song) feat. Casey Cott, KJ Apa, Lili Reinhart, Camila Mendes, Madelaine Petsch, Vanessa Morgan, Karl Walcott, Abby Ro (Archie the Musical)