- Kunihiko Ôshiba
- Â Kenta Date / ... 51 episodes, 1997-1998
- Atsushi Ebara
-  Kôichirô Endô / ... 51 episodes, 1997-1998
- Masaya Matsukaze
- Â Mega Blue / ... 51 episodes, 1997-1998
- Eri Tanaka
-  Chisato Jôgasaki / ... 51 episodes, 1997-1998
- Mami Higashiyama
- Â Mega Pink / ... 51 episodes, 1997-1998
- Satoru Saitô
- Â Dr. Eikichi Kubota 50 episodes, 1997-1998
- Tetsuo Morishita
- Â Dr. Hinelar 50 episodes, 1997-1998
- Asami Jô
- Â Shibolena / ... 48 episodes, 1997-1998
- Hirotaka Suzuoki
- Â Yugande 45 episodes, 1997-1998
- Tomokazu Seki
- Â Bibidebi 45 episodes, 1997-1998
- Ryûzaburô Ôtomo
- Â Javious I / ... 40 episodes, 1997
- Shigeru Kanai
-  Yûsaku Hayakawa / ... 22 episodes, 1997-1998
- Yoshihiro Nozoe
- Â Ken Ooiwa 12 episodes, 1997-1998
- Tatsuyuki Jinnai
- Â Guirail / ... 12 episodes, 1997
- Takano Miyashita
- Â Tachibana 11 episodes, 1997
- Samuel Pop Aning
- Â INET Tech / ... 8 episodes, 1997-1998
- Yuuki Tanaka
- Â Shougo Kawasaki / ... 7 episodes, 1997-1998
- Masako Katsuki
- Â NejiYellow / ... 7 episodes, 1997-1998
- Yôsuke Asari
- Â Takeshi 6 episodes, 1997-1998
- Rondo Mimura
- Â INET Tech 6 episodes, 1997-1998
- Toshiro Tantsu
- Â NejiRed / ... 6 episodes, 1997-1998
- Kunihiko Yasui
- Â NejiBlack / ... 6 episodes, 1997-1998
- Emi Shigemitsu
- Â Erina 5 episodes, 1997-1998
- Tekeshige Hirohara
- Â Shintaro Wada 5 episodes, 1997-1998
- Takumi Hashimoto
- Â Jirou Iwamoto 5 episodes, 1997-1998
- Yoshiharu Yamada
- Â NejiBlue / ... 4 episodes, 1997-1998
- Erina Yamazaki
- Â NejiPink / ... 4 episodes, 1997-1998
- Yûzô Ogura
- Â Principal 3 episodes, 1998
- Shenchû Mitsui
- Â Mr. Kurosawa 3 episodes, 1998
- Yoshimasa Chida
- Â Elephant Nezire / ... 3 episodes, 1997-1998
- Komachi Oi
- Â Kenta's Mother 2 episodes, 1997
- Yûki Shinohara
- Â Maki 2 episodes, 1997
- Tomoyuki Suga
- Â Researcher 2 episodes, 1997
- Daijiro Sakai
- Â Researcher 2 episodes, 1997
- Shelley Sweeney
- Â INET Operator 1 episode, 1997
- Aya Mizuki
- Â Girl 1 episode, 1997
- Tomiko Ishii
- Â Chisato's Grandmother 1 episode, 1997
- Saya Mochizuki
- Â Saeko Minami 1 episode, 1997
- Nagisa Kaneko
- Â Yurika 1 episode, 1997
- Mai Ãhira
- Â Ayumi Shiraishi 1 episode, 1997
- Takeshi Ãbayashi
- Â Professor Kawasaki 1 episode, 1997
- Kenta Uchino
- Â Takashi 1 episode, 1997
- Koreharu Hisatomi
- Â Vice Chief Kijima 1 episode, 1997
- Fujiko Asano
- Â Doctor 1 episode, 1997
- Miho Suzuki
- Â Ruri 1 episode, 1997
- Isao Kamada
- Â Doctor 1 episode, 1997
- Yayoi Takahashi
- Â Megumi Takano 1 episode, 1997
- Futoshi Tanifuji
- Â Secretary 1 episode, 1997
- Chie Suzuki
- Â Technician 1 episode, 1997
- Masahiro Inazu
- Â Souichi Todaji 1 episode, 1997
- Hiroshi Zanma
- Â NejiRed - Human Form 1 episode, 1997
- Yusuke Ozawa
- Â Shinya 1 episode, 1997
- Hiroshi Ãmori
- Â Waiter 1 episode, 1997
- Satoshi Hourai
- Â Vendor 1 episode, 1997
- Chizu Arimoto
- Â Miss Nishiyama 1 episode, 1997
- Mitsuhara Kido
- Â Coach 1 episode, 1997
- Daichi Suzuki
- Â Kunihiko 1 episode, 1998
- Shigeru Chiba
- Â Observatory Director 1 episode, 1997
- Yûko Ôshima
- Â Girl 1 episode, 1997
- Santarô Tsuji
- Â Vice Principal 1 episode, 1997
- Hiroshi Anan
- Â Dr. Nanba 1 episode, 1997
- Hiroshi Okazaki
- Â Shinya's Father 1 episode, 1997
- Naho Suzuki
- Â Mayuko Saotome 1 episode, 1997
- Kento Hatanaka
- Â Boy 1 episode, 1997
- Yukari Satô
- Â Shun's Mother 1 episode, 1997
- Teruhiko Shiroyama
- Â Newscaster #1 1 episode, 1997
- Yasuyuki Asayama
- Â NejiBlack - Human Form 1 episode, 1997
- Tatsuzo Tamaya
- Â Daichi 1 episode, 1997
- Marumi Shiraishi
- Â Kanaka 1 episode, 1998
- Masayo Matsuo
- Â Mother 1 episode, 1998
- Akiko Kobayashi
- Â Haruka 1 episode, 1997
- Momoko Nishida
- Â NejiYellow - Human Form 1 episode, 1997
- Akihisa Hattori
- Â Observatory Employee 1 episode, 1997
- Miki Yoshino
- Â Rose Nezire 1 episode, 1997
- Masahiko Hori
- Â Dr. Toyokawa 1 episode, 1997
- Naomi Yoshizawa
- Â Masumi 1 episode, 1997
- Tadashi Shiraishi
- Â Teacher 1 episode, 1997
- Hironori Okajima
- Â Professor Tanaka 1 episode, 1997
- Akiko Suzuki
- Â Komutan 1 episode, 1997
- Yuki Nishida
- Â Mrs. Nanba 1 episode, 1997
- Chiaki Hiyama
- Â Newscaster #2 1 episode, 1997
- Takashi Nagasako
- Â Antlion Nezire 1 episode, 1997
- Motomu Kiyokawa
- Â Toad Nezire 1 episode, 1997
- Toshiharu Sakurai
- Â Rhino Nezire 1 episode, 1997
- Yoshihiko Kurokawa
- Â Man in Sports Car 1 episode, 1997
- Nishi Shimura
- Â Yasuda 1 episode, 1997
- Hisaya Ishiguro
- Â Bat Nezire 1 episode, 1997
- Kyohei Iizuka
- Â Kid 1 episode, 1997
- Nobuyuki Yoneyama
- Â Mole Nezire 1 episode, 1997
- Hajime Koseki
- Â Mushroom Nezire 1 episode, 1997
- Toranori Yoshikawa
- Â Neo-Bat Nezire 1 episode, 1997
- Hironori Sugita
- Â Kid 1 episode, 1997
- Satoshi Itô
- Â Taniguchi 1 episode, 1997
- Eiji Itô
- Â Transport Nezilar 1 episode, 1998
- Hidenari Ugaki
- Â Stingray Nezire 1 episode, 1997
- Eizô Tsuda
- Â Porcupine Nezilar 1 episode, 1997
- Mahito Tsujimura
- Â Owl Nezire 1 episode, 1997
- Kazuhiko Kishino
- Â Mantis Nezilar 1 episode, 1997
- Nobuhiko Kazama
- Â Shrimp Nezire 1 episode, 1997
- Yoshiko Kuriyama
- Â Termite Nezire (Female) 1 episode, 1997
- Kumahachi Morino
- Â Bearded Cook 1 episode, 1997
- Mai Ãwaki
- Â Kid 1 episode, 1997
- Moichi Saito
- Â Centipede Nezire 1 episode, 1997
- Yutaka Aoyama
- Â Condor Nezilar 1 episode, 1997
- Yôsuke Akimoto
- Â Lizard Nezilar 1 episode, 1997
- Takuma Suzuki
- Â Bee Nezire 1 episode, 1997
- Hironori Miyata
- Â Poison Moth Nezire 1 episode, 1997
- Kazunori Arai
- Â Termite Nezire (Male) 1 episode, 1997
- Tatsuya Kanno
- Â Policeman 1 episode, 1997
- Kazuo Oka
- Â Cicada Nezire 1 episode, 1997
- Hitoshi Horimoto
- Â Anglerfish Nezire 1 episode, 1997
- Takeharu Yamamoto
- Â Student - Hell Nezilar 1 episode, 1998
- Katsumi Shiono
- Â Moray Nezire 1 episode, 1997
- Masayuki Omoro
- Â Coral Nezire 1 episode, 1997
- Kazuhiro Ãguro
- Â Illusion Nezilar 1 episode, 1998
- Koji Koike
- Â Lion Nezilar 1 episode, 1997
- Akio Ôtsuka
- Â Canary Nezilar 1 episode, 1997
- Takeshi Watabe
- Â Pig Nezire 1 episode, 1997
- Toru Nagasawa
- Â Hell Nezilar 1 episode, 1998
- Tomohide Takahara
- Â INET Tech 1 episode, 1997
- Tadashi Takatsuki
- Â Husband 1 episode, 1997