Park Eun-Suh

Sadako Yamamura
Interior artwork from The Ring vol. 1 (November, 2003 Dark Horse Comics). Art by Misao Inagaki.
First appearance	Ring (1991)
Last appearance	Sadako vs. Kayako (2016)
Created by	Koji Suzuki
Portrayed by	Rie Inō (Ring, Ring 2) Hinako Saeki (Rasen) Ayane Miura (Ring: Kazenban) Tae Kimura (Ring: The Final Chapter, Rasen (TV)) Yukie Nakama (Ring 0: Birthday) Ai Hashimoto (Sadako 3D, Sadako 3D 2) Elly Nanami (Sadako vs. Kayako)
Information
Gender	Female
Occupation	Actress (formerly)
Family	Shizuko Yamamura (mother, deceased) Heihachiro Ikuma (biological father in novels and adoptive father in films, deceased in both canons) Unknown sea demon (biological father, films only) Takashi Yamamura (uncle, deceased) Unnamed younger brother (deceased, novels only)
Nationality	Japanese
Age	19 (49 at the time of death )
Other	Hiroshi Toyama (lover, deceased) Mai Takano (vessel, reincarnation)

Sadako Yamamura (山村 貞子, Yamamura Sadako) is the central character and antagonist of Koji Suzuki's Ring novel series along with its numerous film and television adaptions. Her name combines the Japanese words for "chaste" (sada) and "child" (ko). Sadako's fictional history alternates between continuities, but all depict her as the vengeful ghost of a young yet troubled psychic who was brutally murdered and thrown into a well in an attempt to stop her powers from spiralling out of control. As a ghost, she uses nensha, her most distinctive power and weapon, to create a cursed video tape that will kill whoever watches it exactly one week later unless the tape is copied and shown to another person, who then must repeat the same process.

Sadako has been played by a number of actresses in films, including Rie Inō in Ring and Ring 2, Hinako Saeki in Rasen, Yukie Nakama in Ring 0: Birthday as the protagonist later antagonist, Ayane Miura in Ring: Kanzenban, Tae Kimura in Ring: The Final Chapter and Rasen, and Ai Hashimoto in Sadako 3D. Foreign adaptations featured Bae Doona in the South Korean film The Ring Virus, Daveigh Chase as Samara Morgan in the American film The Ring, as well as Kelly Stables in The Ring Two and Bonnie Morgan in Rings.