Cathy Ames

Catherine "Cathy" Ames, later known as Kate Trask or Kate Albey, is a fictional character and the main antagonist in John Steinbeck's novel East of Eden. She is married to the main protagonist Adam Trask, and the mother of his twin sons, Caleb and Aron. Beneath her charming, attractive facade, she is an evil woman who manipulates and destroys people for her own amusement and profit. Steinbeck characterizes her as a "psychic monster" with a "malformed soul".