Born in Pittsburgh, Kathleen Tessaro studied drama before emigrating to London. After ten years working as an actress in films, television, and theatre, she left the profession and spent several years working for the English National Opera, while training in the evenings as a drama teacher and voice coach. During this time, she began to write. Working on short stories during her lunch hour, she soon became a regular member of a writers workshop. All of her novels have been Sunday Times Bestsellers.