Riverdale stars KJ Apa as Archie Andrews and Camila Mendes as Veronica Lodge... 1 / 7
Lili Reinhart as Betty Cooper and Cole Sprouse as Jughead Jones. 2 / 7
Shannon Doherty will appear in the season 4 premiere, which is a tribute to late actor Luke Perry. 3 / 7
Wyatt Nash will return as Betty and Jughead's half brother, Charles Smith. 4 / 7
New additions include Mishel Prada as Veronica's sister, Hermosa. 5 / 7
Kerr Smith will play Mr. Honey, the new principal of Riverdale High. 6 / 7
Sam Witwer will play mysterious new teacher Mr. Chipping. 7 / 7