Hiroki Yasumoto
Jack (voice)

Maaya Uchida
Kaho (voice)

Hideyuki Umezu
Principal (voice)

Go Shinomiya
Teacher (voice)

Yu Shimamura
Announcement (voice)

Tomoyuki Shimura
Underground Person A (voice)
Shunsuke Itou
Underground Person B (voice)

Yuka Keicho
Underground Person C (voice)

Genki Muro
Student (voice)

Toru Sakurai
Researcher A (voice)