Hashimoto and the other characters in the series were voiced by John Myhers.
He played Robert Livingston in 1776 (he also played the role in the Broadway musical version), and also appeared in Mel Brooks' History of the World, Part I as the leader of the Roman Senate.
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Myhers also had a robust career on television, appearing on shows like Get Smart, Hogan's Heroes, The Mothers-in-Law, I Dream of Jeannie, Love, American Style, Alice, and Fantasy Island.
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