Shelby Cummings

Shelby Rose Cummings is one the main Antagonist in the movie. the most popular girl in Sam's school and cheerleader captain. She has to tolerate Sam's stepsisters Brianna and Gabriella because they gave her a Prada bag for her birthday. Her best friends are Madison and Caitlyn. Shelby torments Sam and calls her "Diner Girl". She used to be Austin Ames s girlfriend and manipulated him into doing what she wants. mike dumped her before the Halloween Homecoming Dance. When Brianna and Gabriella lied to Shelby by saying Sam tried to steal Austin and show her Sam and mike's emails, she immediately becomes jealous. When Shelby and the stepsisters expose Sam's secret and humiliate her in front of the whole school, she's delighted by the chance to get back together with Austin but he ignores her and keeps his distance from her. At the homecoming game, Shelby gets her comeuppance as Austin falls into shelby's arms and Shelby becomes h and. At the end of the movie, she tries winning, after he is seen in an acne commercial and is popular but dumps her for another girl, after seeing her true colors from when she humiliated

In When the Cold Breeze Blows Away, she will be serves as the bioterrorist of Alexia Ashford in during her rules.