Similarities to Heathers (1988)

https://moviechat.org/tt0097493/Heathers/58c74f8f6b51e905f6764428/Similarities-to-Mean-Girls

*Heather Chandler - Regina George

Blonde mega-bitch who dominates their minions and picks on others.

https://heathers.fandom.com/wiki/Heather_Chandler

*Heather Duke - Gretchen Weiners

https://heathers.fandom.com/wiki/Heather_Duke

Quieter and submissive follower. Eventually starts to rebel against the leader of the clique but in different ways. Heather D steps up as leader when Chandler dies and becomes bitchier. Gretchen tells Regina's secrets, which can be used against her by Cady, Damien and Janis.

*Heather McNamara - Karen Smith

https://heathers.fandom.com/wiki/Heather_McNamara

Airheaded and ditzy member of the clique. Although Heather M is not stupid like Karen, she has more of a ditzy air about her which makes me call her the Karen-type of the clique.

*Veronica Sawyer - Cady Heron

https://heathers.fandom.com/wiki/Veronica_Sawyer

Outsider of the group, who joins the clique but leaves her real friends behind (Betty Finn/Janis and Damien). Veronica is in the clique but doesn't like their attitude. Cady specifically joins the clique to take it down.

https://heathers.fandom.com/wiki/Betty_Finn