Junko Takeuchi

as Red (voice)

Takuya Eguchi

as Green (voice)

Tomokazu Sugita

as Takeshi (voice)

Minoru Inaba

as Old Man Fuji (voice)

Rikiya Koyama

as Sakaki (voice)

Tokuyoshi Kawashima

as Wataru (voice)

Katsuji Mori

as Dr. Ōkido (voice)

Yui Ishikawa

as Reina (voice)