Mystery of the Undersea Cave

Keiju Kobayashi

Dr. Yusuke Tadokoro

Takenori Murano

Toshio Onodera

Kaoru Yumi

Reiko Abe

Mari-Christine Jeanney

Maria Bailey

Tomoko Ogawa

Maya Ariyoshi

Tomoyuki Hosokawa

Assistant Professor Nobuhiko Yukinaga

Toshio Kurosawa

Secretary Nakata

Noboru Nakaya

Hideo Yoshimura

Kunie Tanaka

Tatsuno

Kenji Sahara

Nozue

Isao Hashimoto

Takamaru Sasaki

Franz Gruber

Robert Caster

Yoshio Tsuchiya