Seymour Hart
Mesamu (also known as "Seymour Hart" in the '66 English Dub) is a one-time character that appears in the 32nd episode of the 1965 series: Kimba the White Lion (Jungle Emperor).
His job is to stop poachers from hunting the animals in the Jungle. He hopes to arrest the boss of the poachers referred to as the Devil's Mask (Devil Man). While drifting in the river on his boat, Kimba and Charley Cheetah rescue him from his wounded state. They work together to stop the poachers once and for all after Seymour recovers from his wounds.
At the final showdown, Seymour corners the Devil's Mask and asks him to turn himself in. He accidentally fires his gun while Kimba is fighting with Mr. Greedy, killing him.