In all of the films, except for the third installment of The Grudge series, she is played by actress Takako Fuji.
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After the accidental deaths of her parents which didn't seem to faze her, Kayako marries Takeo Saeki, the only person who understands and cares for her, and together, they have a son named Toshio (佐伯俊雄).
Takeo Saeki | Saeki | Kayako Saeki | Kayako |
the film was written and directed by Takashi Shimizu and is divided in six parts, chronicling the experiences of tenants of a cursed house where a man, Takeo Saeki (Takashi Matsuyama) killed his wife, Kayako (Takako Fuji), and his son, Toshio (Ryota Koyama), in a jealous rage.
In this film he discovers that his wife, Kayako was having an affair with his son's teacher, Shunsuke Kobayashi, and this is where his insanity begins, because he was already happily married to Kayako and he had a decent job and he had a son which he considered his and his alone.