Riven

Michael Keith

as Eric Carter

Harry Holcombe

as Dr. Arnold Johnson

James Yagi

as Yutaka Omura

Tadao Takashima

as Osamu Sakurai

Kenji Sahara

as Kazuo Fujita (as Keji Sahaka)

Ichirō Arishima

as Mr. Tako (as Ichiro Arishima)

George Takei

as Osamu Sakurai (voice) (uncredited)

Les Tremayne

as Mr. Tako / Dr. Shigesawa / Dr. Akira Makino / General Masami Shinzo / Commander Roberts / Narrator (voice) (uncredited)

Byron Morrow

as Newscaster (uncredited)

Mie Hama

as Fumiko Sakurai (uncredited)

Akiko Wakabayashi

as Tamiye (uncredited)

Akemi Negishi

as Chikiro's Mother (Dancing Girl) (uncredited)

Akihiko Hirata

as Dr. Shigezawa (uncredited)

Yū Fujiki

as Kinzaburo Furue (uncredited)

Jun Tazaki

as General Masami Shinzo (uncredited)

Yoshio Kosugi

as Faro Island Chief (uncredited)

Ikio Sawamura

as Witch Doctor (uncredited)

Kenzō Tabu

as Dreary Newscaster (uncredited)

Tatsuo Matsumura

as Dr. Akira Makino (uncredited)

Victor Millan

as Rodrigo Infanta (uncredited)

Douglas Fein

as Commander Roberts (uncredited)

Haruo Nakajima

as Godzilla (uncredited)

Shōichi Hirose

as King Kong (uncredited)

Katsumi Tezuka

as Godzilla in iceberg (uncredited)

Paul Mason

as Misc. Characters (voice) (uncredited)

Bruce Howard

as Misc. Characters (voice) (uncredited)

Peter Zinner

Music Supervisor

William L. Stevenson

Sound Effects

Eiji Tsuburaya

Special Effects

George Worthing Yates

Original Story

Hajime Koizumi

Director of Photography

Toshio Takashima

Lighting Technician

Eiji Tsuburaya

Visual Effects

Kenji Aoki

Choreographer

Sadamasa Arikawa

Special Effects

Hiroshi Mukoyama

Visual Effects

Takeo Kita

Production Design

Teruaki Abe

Production Design

Herschel Burke Gilbert

Music

Henry Mancini

Music

Herman Stein

Music

Koichi Kawakita

Special Effects

Koichi Kawakita

Special Effects Assistant

Masakatsu Asai

Special Effects

Masakatsu Asai

Special Effects Assistant

Motoyoshi Tomioka

Special Effects

Akira Watanabe

Visual Effects Art Director

Koji Kajita

First Assistant Director

Koji Hashimoto

Assistant Director

Seiji Tani

Assistant Director

Kuichirô Kishida

Lighting Technician

Shigeru Nakamura

Production Manager

Sadamasa Nishimoto

Sound Effects

Motoyoshi Tomioka

VFX Director of Photography

Sadamasa Arikawa

VFX Director of Photography

Kuichirô Kishida

VFX Lighting Artist

Eiji Tsuburaya

Visual Effects Director

Takao Saiwai

Visual Effects

Yukio Manoda

Visual Effects

Yukio Manoda

Visual Effects Camera

Koichi Kawakita

Visual Effects Camera

Takashi Narita

Visual Effects Production Manager

Willis H. O'Brien

Original Story

Kyuzo Yamamoto

Property Master

Teizô Toshimitsu

Sculptor

Takashi Nakao

Still Photographer

Teizô Toshimitsu

Costume Designer

Kanju Yagi

Costume Designer

Yasuei Yagi

Costume Designer

Eizo Kaimai

Costume Designer

Teruyoshi Nakano

Special Effects

Teruyoshi Nakano

Special Effects Assistant

Yôichi Manoda

Special Effects

Yôichi Manoda

Special Effects Assistant

Toshiro Aoki

Visual Effects Art Director

Toshiro Aoki

Special Effects Assistant

Jiro Shirasaki

Visual Effects Art Director

Jiro Shirasaki

Special Effects Assistant

Yasuyuki Inoue

Special Effects Assistant

Yasuyuki Inoue

Visual Effects Art Director

Yoshio Irie

Special Effects Assistant

Yoshio Irie

Visual Effects Art Director

Teizô Toshimitsu

Modeling

Kanju Yagi

Modeling

Yasuei Yagi

Modeling

Eizo Kaimai

Modeling

Sadao Iizuka

Visual Effects

Yôichi Manoda

Visual Effects Camera

Fuchimu Shimakura

Background Designer

Fuchimu Shimakura

Matte Painter

Paul Mason

Writer

John Beck

Producer

Thomas Montgomery

Director

Hans J. Salter

Music

Heinz Roemheld

Music

Paul Sawtell

Music

Keizô Murase

Sculptor

Keizô Murase

Costume Designer

Ishirō Honda

Director

Bruce Howard

Writer

Shinichi Sekizawa

Screenplay

Peter Zinner

Supervising Film Editor

Reiko Kaneko

Editor

Tomoyuki Tanaka

Producer

Bert Shefter

Music

Akira Ifukube

Music

Hachiro Matsui

Music

Peter Zinner

Music Editor

William L. Stevenson

Sound Effects Editor

Hisashi Shimonaga

Sound Mixer

Masao Fujiyoshi

Sound Recordist

Koichi Takano

Special Effects

Hiroshi Mukoyama

Visual Effects Compositor

Taka Yuki

Visual Effects

Haruo Nakajima

Stunts

Shōichi Hirose

Stunts

Masakatsu Asai

Visual Effects

Masakatsu Asai

Visual Effects Director

Teruyoshi Nakano

Visual Effects

Teruyoshi Nakano

Visual Effects Director

Tôru Suzuki

Special Effects

Tôru Suzuki

Special Effects Assistant