Steve Martin
Raymond Burr
Shinkichi (as Tuyoaki Suzuki)
Toyoaki Suzuki
George Lawrence (uncredited)
Mikel Conrad
President of Company (uncredited)
Toranosuke Ogawa
Dr. Tabata's Assistant (uncredited)
Tadashi Okabe
The Old Fisherman (uncredited)
Kokuten Kōdō
Man on Boat (uncredited)
Kenji Sahara
Godzilla (uncredited)
Haruo Nakajima
Katsumi Tezuka
Unidentified Character (voice)
Raymond Royer
Michel François
Roland Ménard
Security Officer Tomo Iwanaga (as Frank Iwaiga)
Frank Iwanaga
Violette Jean
René Blancard
Maurice Favières
Dominique Rémy
Gérard Kérise
Louis Perdoux
Claude Dupuis
Eddy Rasimi
Ogata (as Akiro Takarata)
Akira Takarada
Dr. Serizawa
Akihiko Hirata
Hagiwara
Sachio Sakai
Dr. Yamane
Takashi Shimura
Emiko Yamane (as Momaku Kuchi)
Momoko Kôchi
Dr. Tabata (uncredited)
Fuyuki Murakami
Seiji (uncredited)
Ren Yamamoto
Director
Terry O. Morse
Story
Supervising Film Editor
Special Effects
Hajime Tsuburaya
Visual Effects Camera
Producer
Paul Schreibman
Additional Music
Sei Ikeno
Executive Producer
Joseph E. Levine
Assistant Costume Designer
Yoshio Suzuki
Modeling
Costume Designer
Visual Effects Art Director
Yasuyuki Inoue
Tomoyuki Tanaka
Iwao Mori
Music
Akira Ifukube
Novel
Shigeru Kayama
Lyricist
Original Story
Visual Effects
Sadao Iizuka
Sadamasa Arikawa
VFX Director of Photography
First Assistant Director
Koji Kajita
Eizo Kaimai
Sculptor
Teizô Toshimitsu
Ishirō Honda
Screenplay
Eiji Tsuburaya
Visual Effects Director
Property Master
Kyuzo Yamamoto
Tohl Narita
Yoshio Irie
Kanju Yagi
Fuminori Ōhashi
Yôichi Manoda
Motoyoshi Tomioka
Sound Recordist
Norio Tone
Lighting Technician
Kuichirô Kishida
Chōshirō Ishii
Masao Yagi
Sound
Arthur B. Smith
Hisashi Shimonaga
Yasuei Yagi
Sound Effects
Ichirô Minawa
Shuzaburo Araki
Akira Watanabe
Production Manager
Teruo Maki
Visual Effects Production Manager
Yasuaki Sakamoto
Director of Photography
Guy Roe
Hiroshi Mukoyama
Takeo Murata
Masao Tamai
Robert Noël
Art Direction
Satoru Chûko
Production Design
Takeo Kita
Writer
Bruno Guillaume
Michel Gast
VFX Lighting Artist
Shoji Ogawa
Taka Yuki
Assistant Camera
Yuzuru Aizawa
Assistant Gaffer
Shinji Kojima
Seishichi Kojima
Second Assistant Director
Susumu Takebayashi
Sound Assistant
Nobuyuki Tanaka
Sound Effects Editor
Costume Consultant
Editor
Kazuji Taira
Assistant Director
Ira Webb
Assistant Editor
Terry Morse Jr.
Al C. Ward
Assistant Sound Editor
Edmund Goldman
Harold Ross
Richard Kay
Terry Turner
Harry Rybnick
Edward B. Barison
Set Decoration
George R. Rohrs