Massie Block

Massie Block is a popular girl at OCD (Octavian Country Day), is alpha of the Pretty Committee, and is used to being the Top Alpha and idol of all the students, until Claire, a new girl from Orlando, moves to Westchester. Massie has brown hair, amber eyes, and expensive wardrobe. She is described as wearing (the fictional) Chanel No. 9 every day and people often mistake her signature scent for Chanel No. 19. On special occasions, she wears No. 5., while Chanel No. 19 is listed as her signature scent in The Cliquetionary. Massie is portrayed by Elizabeth McLaughlin in the film.

In When the Cold Breeze Blows Away, she will be the one of leaders serving for New Central Powers after her pact and she will rival against Kira Buckland and Brianna Knickerbocker from the Grand Alliance.