"daughter" to Dr. Kawashimo. : Creator of Jetter Mars' incredible artificial intelligence and heart, and creator of Miri and Melchi. Opposing fellow scientist Dr. Yamanoue, he desired Mars to live a life of good purpose and peace. : Creator of Mars' body. He designed him as a machine for war, and thus named his creation after the Roman god of war. Mars looked up to him as his father. He disappears after being buried during atomic tests and is left for dead. : In many of his works, Tezuka drew himself as a character, immersed in the universe of his creations, and interacted with his characters. He included himself also in Jetter Mars, appearing as friend and advisor to Mars. and : Two cartoony little characters, that appeared whimsically in nonsensical situations, as comic relief. Tezuka's signature, they appeared in all of his works, be it manga or animated, as they were a form of dialogue between Tezuka and his readers, developed during the years. Hyōtan-tsugi usually appeared falling in front of a character at the most inappropriate of times, and getting kicked out angrily by them, and Spider usually appeared in moments of tension, repeatedly uttering his trademark phrase, , roughly "Here ta meet ya!". Additionally, Hyōtan-tsugi appeared in each episode during the opening intro and end credits sequences. : One of Tezuka's most recognizable characters in his Star System, he appeared playing non-praiseworthy roles, as usual for him. Episode list The series had 27 episodes, each lasting 24 minutes approximately. Broadcast by Fuji TV, on Thursday nights. As with all Tezuka's works, the series made use of his Star System cast technique, featuring many of his characters from previous works (manga or animated) as guests performing various roles. The following list includes the episode title, airing date and guest characters. Manga Adaptation The anime series also was adapted into a few manga issues published as one-shot stories, based on the storylines shown in the anime. They weren't written or illustrated by Osamu Tezuka, but by various licensed artists. The issues are listed as follows: Televiland Comics Issue One-shot story illustrated by Shigeto Ikehara, published in the first issue of the magazine in 1979. Bōken-ō Manga Magazine Issue Illustrated by Rentarō Iwata for the defunct Bōken-ō manga magazine. Televi-Magazine Issue Illustrated by Kai Nanase and published in 1979. Chū'ichi Jidai Magazine Story Illustrated by Saisuke Hiraga, published from April