Ken

A stalwart space cowboyhero Ken is a boy with a mysterious past. Captain Ken also known as the Savior of the Martians is a mysterious human hero boy who along with his powerful robot horse Arrow intervenes to help combat the growing violence between human settlers and the indigenous martian population. Appearing and vanishing mysteriously the boy has a strange connection to the pretty young woman named Kenn Minakami. Ken is the titular hero of the SciFi meets the Old West shonen action adventure Captain Ken 196061. Although he hasnt appeared outside his own series he is the main protagonist in an adventure manga that explores the struggle of two different sentient species attempting to coexist similar to Nextworld 1951 Zero Men 195960 and the human/robot relations issues in Astro Boy 195268. Source: Tezuka in English