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
Tohl Narita
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
Fuminori Ōhashi
Costume Consultant
Property Master
Kyuzo Yamamoto
Masao Yagi
Kanju Yagi
Motoyoshi Tomioka
Lighting Technician
Chōshirō Ishii
Yasuei Yagi
Yôichi Manoda
Akira Watanabe
Shuzaburo Araki
Yoshio Irie
Kuichirô Kishida
Production Manager
Teruo Maki
Visual Effects Production Manager
Yasuaki Sakamoto
Director of Photography
Masao Tamai
Guy Roe
Hiroshi Mukoyama
Art Direction
Satoru Chûko
Takeo Kita
Production Design
Sound Effects
Robert Noël
Writer
Bruno Guillaume
Michel Gast
VFX Lighting Artist
Shoji Ogawa
Taka Yuki
Assistant Camera
Yuzuru Aizawa
Assistant Gaffer
Shinji Kojima
Seishichi Kojima
Sound Assistant
Nobuyuki Tanaka
Editor
Kazuji Taira
Assistant Editor
Terry Morse Jr.
Assistant Sound Editor
Edmund Goldman
Harold Ross
Richard Kay
Terry Turner
Harry Rybnick
Edward B. Barison
Set Decoration
George R. Rohrs
Sound Effects Editor
Second Assistant Director
Susumu Takebayashi
Assistant Director
Ira Webb
Takeo Murata
Al C. Ward
Sound Recordist
Hisashi Shimonaga
Norio Tone
Ichirô Minawa
Sound
Arthur B. Smith