Directed by:- Makoto Shinkai
- Steven Foster
- Makoto Shinkai
- Kenji Mizuhashi ... Takaki Toono (voice)
- Yoshimi Kondou ... Akari Shinohara (segment "Oukashou") (voice)
- Satomi Hanamura ... Kanae Sumita (segment "Cosmonaut") (voice)
- Ayaka Onoue ... Akari Shinohara (segment "Byousoku 5 Centimeter") (voice)
- Risa Mizuno ... (voice)
- Yuka Terazaki ... (voice)
- Yuko Nakamura ... (voice)
- Masami Iwasaki ... (voice)
- Rei Kondo ... (voice)
- Hiroshi Shimozaki ... (voice)
- Takahiro Hirano ... (voice)
- Akira Nakagawa ... (voice)
- Keiko Izeki ... (voice)
- Suguru Inoue ... (voice)
- Rion Kako ... (voice)
- Rika Nakamura ... (voice)
- Miki Suga ... (voice)
- Mika Sakenobe ... (voice)
- Yumiko Atashika ... (voice)
- Yukako Saito ... (voice)
- Jennifer Alyx ... Kanae's Friend and various additional voices (voice)
- Anne Armogida ... (voice: English version)
- Chris Ayers ... (voice: English version)
- Eden J. Barrera ... (voice: English version) (as Eden Barrera)
- Johnny Yong Bosch ... Takaki Toono (voice: English version)
- Kira Buckland ... Kanae Sumita (voice: English version)
- Shelley Calene-Black ... (voice: English version)
- Hilary Haag ... Akari Shinohara (voice: English version)
- Erika Lenhart ... Akari Shinohara (voice: English version) (as Erika Weinstein)
- David Matranga ... Takaki Toono (voice: English version)
- Serena Varghese ... Kanae Sumita (voice: English version)
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