Marumaro owns the shadow Saber Tiger who uses monk charged attacks. In the anime, Saber Tiger thinks himself of as a defender of justice and encourages Marumaro to feel the same way.    from wikipedia

As Shu's village was being attacked by an unknown enemy, he and his friends, Jiro and Kluke decide to defend their home. They soon meet warrior Zola and receive the powers of Shadow, an ability that let's them transform their shadow into a powerful monster. Shu receives one of the most powerful monsters, Blue Dragon, and they all set out to defeat their enemy.
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(Source: Anime News Network)

His name is sometimes mistranslated as Hitoshi Horikawa.

__Date of Birth:__ 1952

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Roberto Kleiner Ciantelli is a Brazilian actor, voice actor, announcer, dubbing director, entrepreneur and producer. He is the founder and owner of the UP Voice studio, in Campinas in the interior of São Paulo, having already worked in voice-over and TV production in Brazil and the United States.