Showtaro Morikubo

Yu Ominae (voice)

Ken Shiroyama

Dr. Meisel (voice)

Takehito Koyasu

Jean Jacquemonde (voice)

Katsumi Suzuki

Little Boy (voice)

Sakiko Tamagawa

Margaret (voice)

Kinryu Arimoto

Yamamoto (voice)

Ryuji Aigase

Colonel McDougal (voice)

Kenji Takano

Fat Man (voice)

Hiroshi Matsumoto

Manager (voice)

Ikumi Kimura

Stewardess (voice)

Kenichi Sakaguchi

N.C.O (voice)

Masaaki Yajima

Narrator (voice)

Masaki Aizawa

Excavation Research Agent (voice)

Masashi Muta

COSMOS Yu (voice)

Takashi Yoshida

Announcer (voice)