She is also the one who yelled "This contest insults women!" When Vic Mooney was about to announce the voting for Prom King and Queen. When Carrie White gets drenched in pig's blood in front of everybody at the Prom, Myra laughs at her, along with the rest of the students and teachers.
It is unknown if she survived The Black Prom.
Myra Crewes is renamed Katie O' Shea is the 1976 film. She is portrayed by Katie Irving, who also wrote and sang 2 songs for the film "Born to Have It All" and "I Never Dreamed Someone Like You Could Love Someone Like Me".
She is seen during the game of volleyball and in the opening scene, completely naked. But she is present when Carrie White is having her first period. She is later seen in detention chewing her hair and looking bored and she attended the calisthenic. During the Prom she is nominated Prom Queen but loses to Carrie. When Carrie wins she is seen clapping behind her, when the blood is dropped on Carrie she presumably burst into laughter. During the mayhem, she is seen pushing Alice Litten away from her and being tangled up between the ribbons. When Carrie leaves the Prom, Katie's body can be seen being dragged across.
She burned to death along with everyone else in the gym.