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Seiichi Hirai (平井 誠一 Hirai Seiichi?) voiced Explosive Ninja Rocket Man in Sekai Ninja Sen Jiraiya, Walter in Tokkei Winspector and Mercenary Death Mult in Juukou B-Fighter. He also reprised his role in Tokkyuu Shirei Solbrain
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Seiichi Hirai (平井 誠一, Hirai Seiichi?) voiced Explosive Ninja Rocket Man in Sekai Ninja Sen Jiraiya, Walter in Tokkei Winspector and Mercenary Death Mult in Juukou B-Fighter. He also reprised his role in Tokkyuu Shirei Solbrain