Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster

A giant sea monster known as Dragonsaurus has emerged from out of nowhere, terrorizing the depths of the oceans. Great Mazinger, Grendizer and the Getter Robo G team join forces to combat the new threat. But their task becomes more complicated when Dragonsaurus swallows up Boss Borot and makes its way towards Tokyo. Source: ANN

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  Akira Kamiya

  Ryo Nagare
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  Hiroya Ishimaru

  Kôji Kabuto
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  Keaton Yamada

  Hayato Jin
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  Kei Tomiyama

  Daisuke Umon / Duke Fleed
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  Keiichi Noda

  Tetsuya Tsurugi
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  Joji Yanami

  Dr. Umon / Professor Yumi
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  Rihoko Yoshida

  Michiru Saotome
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  Hiroshi Otake

  Boss
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  Kosei Tomita

  Dr. Saotome