- Motoko Kumai
- Shoutarou Kaneda
- Minoru Inaba
- Chief Ootsuka
- Takkô Ishimori
- Chief Cabinet Secretary
- Rie Ishizuka
- Ahiru Takamizawa
- Yûji Mikimoto
- Kenji Murasame
- Mugihito
- Professor Yamagishi
- Ryûji Nakagi
- Inspector Teramachi
- Tadashi Nakamura
- Dr. Bigfire
- Tomokazu Seki
- Detective Seki
- Hiroko Suzuki
- Tsukie Kayano
- Katsumi Suzuki
- Secretary
- Shigeru Ushiyama
- Professor Shikishima
- Norio Wakamoto
- Ryuusaku Murasame
