Akikazu Fujishima

Kôji Yakusho

Nami Endo

Fumi Nikaidô

Kanako Fujishima

Nana Komatsu

I (Boku) / Narrator

Hiroya Shimizu

Detective Asai

Satoshi Tsumabuki

Detective Aikawa

Jô Odagiri

Dr. Tsujimura

Jun Kunimura

Kiriko Fujishima

Asuka Kurosawa

Emi Morishita

Ai Hashimoto

Rie Azuma

Miki Nakatani

Sakiyama

Munetaka Aoki

Tomoko Nagano

Aoi Morikawa

Detective Aikawa's Wife

Megumi Hatachiya

Yashuhiro Matsunaga

Mahiro Takasugi

Boy with Blonde Hair

Shono Hayama

Shimazu

Hiroki Nakajima

Tezuka Mai

Police Officer (uncredited)

Kanji Furutachi

Aikawa's wife (uncredited)

Megumi Hataraya

Seiji Ogata

Hitoshi Hoshino

Shimazu's Friend

Kaisei Kamimura

Hiroshi Kawamoto

Daichi Watanabe

Yoko (Kanako's Ex-Middle School Classmate #2)

Yumeno Kato

Katsumi

Ryo Matsuura

hospital receptionist (uncredited)

Ayaka Nakata

(uncredited)

Kenji Kawahara

Kanako's Ex-Middle School Classmate #3

Airi Kido

Yoshinori Chou

Yoshio Ko

(uncredited)

Taiki Sato

Yoshinori Chou

Yoshio Kou

(uncredited)

Haruki Takano

Shimazu's friend (uncredited)

Kazunori Mimura

(uncredited)

Sonomi Hoshino

daughter on house's ads (uncredited)

Hannah Nishino

(uncredited)

Hiroshi Kobayashi

Shimazu's friend (uncredited)

Haruka Saito

Matsunaga's Friend (uncredited)

Shunya Ohira

Party's girl (uncredited)

Monica Sahara

Shimazu's Friend

Haruka Saitou

Party's Boy

Daiki Sato

Policeman

Kentaro Shimazu

(uncredited)

Satoshi Koji

(uncredited)

Rena Shimura

(uncredited)

Toru Shinagawa

(uncredited)

Hinata Shizaki

Woman in Commercial (uncredited)

Aya Takeko

Matsunaga's friend (uncredited)

Shun'ya Ohira

Hiroshi Kawamoto

Dai Watanabe

(uncredited)

Sarina Yamada

Kanako's Friend at Party

Emma

Kevin

housewife in house's ads (uncredited)

Aya Takekou

(uncredited)

Mai Tezuka

Family restaurant girl

Maika Ohtsu