Archie's Weird Mysteries - Season 1 Episode 24 Green-Eyed Monster
Overview: A sea creature, disguised as a beautiful green-haired, green-eyed exchange student, has an affection for redheads, and plans on taking the unsuspecting Archie for her husband. It's up to Betty and Veronica to discover their new rival's secret, and save Archie from her grasps.