|This article is about a/an ally/space sheriff in Uchuu Keiji Gavan.|
Space Sheriff Voicer (Sonny Chiba) is Gavan's father; he was a former space sheriff of Earth, betrayed by his fellow Hunter Killer and captured by the Makuu. He was forced to build the Hoshino Space Cannon, a weapon that can destroy a planet, but he kept the blueprints a secret even after being tortured. He was saved from imprisonment by his son Gavan. He was brought back to Dolgrian but died soon after, with the secret blueprint for the cannon written on the palm of his hand.