Hiro Yuuki

as Signal (voice)

Ikue Otani

as Mini Signal (voice)

Rica Matsumoto

as Nobuhiko Otoi (voice)

Akio Otsuka

as Shinnosuke Otoi (voice)

Yuri Amano

as Chris (voice)

Yuriko Shiratori

as Elara (voice)

Takehito Koyasu

as Pulse (voice)

Kumiko Nishihara

as Minoru Otoi (voice)

Issei Futamata

as Masanobu Otoi (voice)

Toshiyuki Morikawa

as Officer Maki (voice)

Fumie Kusachi

as No. 3 (voice)

Masami Toyoshima

as Flag (voice)

Ikuo Nishikawa

as Hoshimaro Umenokoji (voice)

Masaya Onosaka

as A Suke (voice)

Kujira

as B Suke (voice)