Sadako Yamamura (山村貞子 Yamamura Sadako?) is the antagonist in Koji Suzuki's novel Ring and the 1998 film adaptation. She returns as the antagonist in Rasen, is the protagonist in Ring 0: Birthday, and appears in the Korean and American remakes of the Ring cycle films. In the original novel, Sadako was portrayed with testicular feminization syndrome, meaning that she was anatomically male. In both the novels and movies, it is possible to infer that she is the daughter of some oceanic based entity, making her a quasi-oceanic demigod. __TOC__