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)

William L. Stevenson

Sound Effects

Peter Zinner

Music Supervisor

George Worthing Yates

Original Story

Takeo Kita

Production Design

Toshio Takashima

Lighting Technician

Hiroshi Mukoyama

Visual Effects

Eiji Tsuburaya

Special Effects

Hajime Koizumi

Director of Photography

Sadamasa Arikawa

Special Effects

Kenji Aoki

Choreographer

Teruaki Abe

Production Design

Eiji Tsuburaya

Visual Effects

Koji Kajita

First Assistant Director

Eiji Tsuburaya

Visual Effects Director

Motoyoshi Tomioka

Special Effects

Akira Watanabe

Visual Effects Art Director

Yukio Manoda

Visual Effects Camera

Koji Hashimoto

Assistant Director

Seiji Tani

Assistant Director

Yukio Manoda

Visual Effects

Koichi Kawakita

Special Effects

Herman Stein

Music

Herschel Burke Gilbert

Music

Masakatsu Asai

Special Effects Assistant

Sadamasa Arikawa

VFX Director of Photography

Shigeru Nakamura

Production Manager

Henry Mancini

Music

Koichi Kawakita

Special Effects Assistant

Masakatsu Asai

Special Effects

Sadamasa Nishimoto

Sound Effects

Kuichiro Kishida

Lighting Technician

Takao Saiwai

Visual Effects

Takashi Narita

Visual Effects Production Manager

Motoyoshi Tomioka

VFX Director of Photography

Willis H. O'Brien

Original Story

Kuichiro Kishida

VFX Lighting Artist

Koichi Kawakita

Visual Effects Camera

Yasuei Yagi

Modeling

Toshiro Aoki

Special Effects Assistant

Yasuyuki Inoue

Visual Effects Art Director

Yasuei Yagi

Costume Designer

Jiro Shirasaki

Visual Effects Art Director

Yasuyuki Inoue

Special Effects Assistant

Sadao Iizuka

Visual Effects

Takashi Nakao

Still Photographer

Teizô Toshimitsu

Sculptor

Kanju Yagi

Costume Designer

Teruyoshi Nakano

Special Effects

Yôichi Manoda

Special Effects

Toshiro Aoki

Visual Effects Art Director

Teruyoshi Nakano

Special Effects Assistant

Kyuzo Yamamoto

Property Master

Teizô Toshimitsu

Costume Designer

Jiro Shirasaki

Special Effects Assistant

Yoshio Irie

Special Effects Assistant

Yoshio Irie

Visual Effects Art Director

Eizo Kaimai

Costume Designer

Yôichi Manoda

Special Effects Assistant

Teizô Toshimitsu

Modeling

Kanju Yagi

Modeling

Eizo Kaimai

Modeling

Yôichi Manoda

Visual Effects Camera

Fuchimu Shimakura

Background Designer

Fuchimu Shimakura

Matte Painter

John Beck

Producer

Paul Mason

Writer

Thomas Montgomery

Director

Heinz Roemheld

Music

Paul Sawtell

Music

Hans J. Salter

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