- Susumu Kurobe
- Â Shin Hayata 39 episodes, 1966-1967
- Sandayû Dokumamushi
- Â Daisuke Arashi 39 episodes, 1966-1967
- Masaya Nihei
- Â Mitsuhiro Ide 39 episodes, 1966-1967
- Bin Furuya
- Â Ultraman / ... 36 episodes, 1966-1967
- Hiroko Sakurai
- Â Akiko Fuji 38 episodes, 1966-1967
- Akiji Kobayashi
- Â Captain 'Cap' Toshio Muramatsu 38 episodes, 1966-1967
- Kôji Ishizaka
- Â Narrator / ... 19 episodes, 1966
- Hikaru Urano
- Â Narrator / ... 19 episodes, 1966-1967
- Teruo Aragaki
- Â Alien Zarab (Kaiju) / ... 16 episodes, 1966-1967
- Akihide Tsuzawa
- Â Isamu Hoshino 13 episodes, 1966-1967
- Kunio Suzuki
- Â Gomora (Kaiju) / ... 11 episodes, 1966-1967
- Akihiko Hirata
- Â Dr. Iwamoto 6 episodes, 1966-1967
- Haruo Nakajima
- Â Gabora (Kaiju) / ... 4 episodes, 1966-1967
- Yukihiro Seino
- Â Chandrah (Kaiju) / ... 4 episodes, 1966-1967
- Nisashi Kondo
- Â Ultraman 3 episodes, 1966-1967
- Masao Nakasone
- Â Ultraman 3 episodes, 1966-1967
- Kôji Ugi
- Â Alien Mefilas (Kaiju) / ... 3 episodes, 1967
- Matsushima Eiichi
- Â Re-Dorako (Kaiju) / ... 3 episodes, 1967
- Tadashi Okuno
- Â Dr. Matsuo / ... 2 episodes, 1966-1967
- Hisaya Itô
- Â Diamand Kick / ... 2 episodes, 1966-1967
- Shûichirô Moriyama
- Â Captain Arthur (voice) / ... 2 episodes, 1966-1967
- Ren Yamamoto
- Â Onita / ... 2 episodes, 1966-1967
- Yutaka Nakayama
- Â Fisherman / ... 2 episodes, 1966-1967
- Kazuo Suzuki
- Â Policeman / ... 2 episodes, 1966-1967
- Hideaki Nagai
- Â Moon Rocket Center Director / ... 2 episodes, 1966-1967
- Toshiaki Konoe
- Â Mr. Akita / ... 2 episodes, 1966-1967
- Koichi Takano
- Â Fisherman (cameo) / ... 2 episodes, 1966-1967
- Michiko Kondô
- Â Child / ... 2 episodes, 1966-1967
- Fumiyo Ikeda
- Â Dorako (Kaiju) / ... 2 episodes, 1966-1967
- Masaru Kanai
- Â Department Store Manager / ... 2 episodes, 1966-1967
- Katsuaki Kawada
- Â Mushiba / ... 2 episodes, 1966-1967
- Jun Haichi
- Â Prof. Nikaidou / ... 2 episodes, 1966-1967
- Shôichi Nishida
- Â Alien Baltan II (voice-over) / ... 2 episodes, 1966-1967
- Chikao Ôtsuka
- Â Boat Patrol Member / ... 2 episodes, 1966
- Haruyoshi Nakamura
- Â Aboras (Kaiju) / ... 2 episodes, 1966
- Hiroshi Yamanaka
- Â Earthquake Research Institute Staff Member / ... 2 episodes, 1966
- Shinya Kashima
- Â Central Meteorological Observatory Staff (voice-over) / ... 2 episodes, 1966
- Tadao Ikeda
- Â Civil Engineering Work Foreman / ... 2 episodes, 1966
- Umenosuke Izumi
- Â Magular (Kaiju) / ... 2 episodes, 1966
- Kôzô Watanabe
- Â Harbor Personnel / ... 2 episodes, 1966
- Kôtarô Tomita
- Â Professor Nakatani 2 episodes, 1967
- Minoru Itô
- Â Chief Miyanomori / ... 2 episodes, 1967
- Chiharu Inayoshi
- Â Osamu Suzuki 2 episodes, 1967
- Hiroshi Miyata
- Â Mihara 2 episodes, 1967
- Sachiko Tominaga
- Â Yukinko 1 episode, 1967
- Shôji Nakayama
- Â Dr. Ninomiya 1 episode, 1967
- Annu Mari
- Â Pati 1 episode, 1967
- Nadao Kirino
- Â Keronia / ... 1 episode, 1967
- Akiko Wakabayashi
- Â Setsuko Hamaguchi 1 episode, 1966
- Yoshio Tsuchiya
- Â Dr. Morita 1 episode, 1966
- Takeshi Aono
- Â Alien Zarab (voice-over) 1 episode, 1966
- Masaaki Tsukada
- Â Shiga Assistant 1 episode, 1966
- Susumu Fujita
- Â Defense Base Member 1 episode, 1966
- Minori Terada
- Â Truck Driver's Assistant 1 episode, 1966
- Sakae Umezu
- Â Hirokawa 1 episode, 1966
- Franz Gruber
- Â Underground Person X 1 episode, 1966
- Ben Hiura
- Â Pearl Oyster Haul Truck Driver 1 episode, 1966
- Ikuko Tani
- Â Tomoko Kubo 1 episode, 1966
- Kôji Yada
- Â Underground Person X (voice-over) 1 episode, 1966
- Harold Conway
- Â Willaim Childer 1 episode, 1966
- Yasuhiko Saijô
- Â Fisherman 1 episode, 1966
- Yasuhisa Tsutsumi
- Â Newspaper Reporter 1 episode, 1966
- Chikako Isomura
- Â Tatsu Yoshimura 1 episode, 1966
- Minoru Takada
- Â Defense Force Commander 1 episode, 1966
- Yoshio Katsube
- Â Space Clerk 1 episode, 1966
- Takeo Namai
- Â Police Detective 1 episode, 1966
- Shigeo Katô
- Â Kanagawa Police Officer 1 episode, 1966
- Yoshiko Maki
- Â Baraj Citizen 1 episode, 1966
- Munemaru Kôda
- Â Defense Base Member 1 episode, 1966
- Yasumi Hara
- Â Clay Pipe Owner 1 episode, 1966
- Tetsuo Kinjô
- Â Defense Conference Member (cameo) 1 episode, 1966
- Edgar Kaiser
- Â Jim Liaison 1 episode, 1966
- Kôen Okumura
- Â Mori 1 episode, 1966
- Hiroshi Hasegawa
- Â Diamond's Cohort 1 episode, 1966
- Keiko Yumi
- Â Chartham 1 episode, 1966
- Yoshiyuki Fukuda
- Â Dr. Fukuyama 1 episode, 1966
- Haruhiko Okamura
- Â Hayashi Ichiro 1 episode, 1966
- Hiroshi Akitsu
- Â Baraj Citizen 1 episode, 1966
- Yoshinobu Kaneko
- Â Zero-sen 1 episode, 1966
- Kiyoshi Suzuki
- Â Hotel Boy 1 episode, 1966
- Kazuo Imai
- Â Youth Group Leader 1 episode, 1966
- Asao Matsumoto
- Â Mr. Matsui 1 episode, 1966
- Reizô Nomoto
- Â Tanker Driver 1 episode, 1966
- Yuko Iida
- Â Nobuko 1 episode, 1966
- Yasuyuki Kachi
- Â Dr. Yamakawa 1 episode, 1966
- Kenjirô Hoshino
- Â Akira 1 episode, 1966
- Kakuzô Iida
- Â Defense Base Member 1 episode, 1966
- Yoshiaki Wakao
- Â Air Unit 203 (voice-over) 1 episode, 1966
- Yuji Hashimoto
- Â Sasuke 1 episode, 1966
- Hans Horneff
- Â Mr. Yesterday 1 episode, 1966
- Sôjirô Uchino
- Â Takashi 1 episode, 1966
- Chinpei Hayashiya
- Â Castle Policeman 1 episode, 1966
- Tsuchio Sato
- Â Obake 1 episode, 1966
- Takeshi Kishino
- Â Thief #2 1 episode, 1966
- Elvira Fubi
- Â Jenny Childer 1 episode, 1966
- Haruo Aizawa
- Â Dr. Ishioka 1 episode, 1966
- Yoichi Miyagawa
- Â Police Detective 1 episode, 1966
- Gen Funabashi
- Â Dr. Kawaguchi 1 episode, 1966
- Sugiono
- Â Alien Baltan (Kaiju) 1 episode, 1966
- Hiroshi Nakajima
- Â Chiro 1 episode, 1966
- Masao Takahashi
- Â President Yoshimura 1 episode, 1966
- Hideharu Sakakibara
- Â Muto Akira 1 episode, 1966
- Yasushi Inayoshi
- Â Harada 1 episode, 1966
- Haruhiko Asaka
- Â Dr. Yamamoto 1 episode, 1966
- Masaki Wakayama
- Â The Bride 1 episode, 1966
- Masaaki Umemoto
- Â Tatara Weather Service Employee 1 episode, 1966
- Akira Eguchi
- Â Thief #1 1 episode, 1966
- Michiru Maki
- Â Miss Maki 1 episode, 1966
- Keizô Sasagawa
- Â Dr. Yamada 1 episode, 1966
- Shuji Fujita
- Â Pigmon (Kaiju) 1 episode, 1966
- Hiroshi Yanagida
- Â Pusan Sailor 1 episode, 1966
- Fujiko Minami
- Â Midori 1 episode, 1966
- Fusako Aihara
- Â Miko 1 episode, 1966
- Masanao Hishiki
- Â Alien Baltan II (Kaiju) 1 episode, 1966
- Yasuhiro Tajiri
- Â Banila (Kaiju) 1 episode, 1966
- Hakase Kuni
- Â Saitama Policeman 1 episode, 1966
- Hideaki Sato
- Â Takeshi 1 episode, 1966
- Kyôko Kitagawa
- Â Akebono Boys' Home Staff Member 1 episode, 1966
- Yukio Aoshima
- Â The Con-Artist 1 episode, 1966
- Rin Maeda
- Â Thief #3 1 episode, 1966
- Toshiya Ueda
- Â Mr. Alan (voice-over) 1 episode, 1966
- Pierre Pilots
- Â Mr. Alan 1 episode, 1966
- Kanta Mori
- Â Dr. Nakamura 1 episode, 1966
- Masahiro Sumiyoshi
- Â Space Clerk 1 episode, 1966
- Tetsuo Yamamura
- Â Toshio 1 episode, 1966
- Masumi Nasu
- Â Yoko Fuji 1 episode, 1966
- Toshie Iwai
- Â Chako 1 episode, 1966
- Ken'ichirô Maruyama
- Â Kimura Assistant 1 episode, 1966
- Annette Sonfers
- Â Anne Morhim / ... 1 episode, 1966
- Hideyo Mangetsu
- Â Mummy Human 1 episode, 1966
- Sen Yano
- Â Jewelry Store Owner 1 episode, 1966
- Kiyohiko Ichihara
- Â Civil Engineering Work Site Worker 1 episode, 1966
- Yutaka Sada
- Â Akita 1 episode, 1967
- Nekohachi Edoya
- Â Pigmon (roars) 1 episode, 1967
- Seizô Katô
- Â Alien Mefilas (voice-over) 1 episode, 1967
- Enver Altenbay
- Â Captain Arthur 1 episode, 1967
- Senkichi Ãmura
- Â Yamamoto 1 episode, 1967
- Yoshirô Aoki
- Â Defense Force General 1 episode, 1967
- Taimei Suzuki
- Â Cosmic Ray Research Staff Member and Dada (voice-over) 1 episode, 1967
- Nami Tamura
- Â Rocket Center Staff Member 1 episode, 1967
- Shinjirô Asano
- Â Dr. Gonda 1 episode, 1967
- Rinsaku Ogata
- Â Yoshimura 1 episode, 1967
- Kiyoshi Komiyama
- Â Pigmon (voice) 1 episode, 1967
- Akira Minami
- Â Gigas (Kaiju) 1 episode, 1967
- Yuki Arasuna
- Â Yoko Akigawa 1 episode, 1967
- Mitsuo Saitô
- Â Rocket Center Staff Member 1 episode, 1967
- Tomohiro Miyamoto
- Â Tabo 1 episode, 1967
- Takaaki Ishikawa
- Â Monk 1 episode, 1967
- Minoru Nakano
- Â Priest (cameo) 1 episode, 1967
- Takashi Kitahara
- Â Space Administration Clerk 1 episode, 1967
- Masahiro Oyake
- Â Re-Pigmon (Kaiju) 1 episode, 1967
- Yukie Nunoji
- Â Rieko 1 episode, 1967
- Tôru Takeuchi
- Â Director Hosokawa 1 episode, 1967
- Hakuyôji Watanabe
- Â Alien Baltan III (Kaiju) 1 episode, 1967
- Sachiko Hori
- Â Tabo's Mother 1 episode, 1967