Samara Morgan

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) 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 (father, deceased) Takashi Yamamura (uncle) Unnamed younger brother (deceased, novels only)
Nationality	Japanese

Sadako Yamamura (山村 貞子, Yamamura Sadako^?) is the central character and antagonist of Koji Suzuki's Ring Trilogy novels, along with the numerous film and television adaptations of the books. Her name combines the Japanese words for "chaste" (sada) and "child" (ko). Sadako's fictional history alternates between continuities, but all involve her possessing supernatural abilities that cause a number of unfortunate events for her, leading to Sadako being thrown down and imprisoned in a well. She uses her powers of nensha to create a cursed video tape that will kill whoever watches it exactly one week after viewing it 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, 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.