- Sarah Michelle Gellar Karen
- Jason Behr Doug
- Clea DuVall Jennifer Williams
- William Mapother Mathew Williams
- Kadee Strickland Susan Williams
- Takako Fuji Kayako
- Bill Pullman Peter Kirk
- Grace Zabriskie Emma Williams
- Rosa Blasi Maria Kirk
- Ted Raimi Alex
- Ryo Ishibashi Detective Nakagawa
- Yuya Ozeki Toshio Saeki
- Yôko Maki Yoko
