Lupin III , referred to in some English adaptations as Arsène Lupin III, is a fictional character created by Kazuhiko Kato aka Monkey Punch as the protagonist for his manga series Lupin the Third, which debuted in Weekly Manga Action on August 10, 1967.

Goemon Ishikawa XIII is a fictional character created by Monkey Punch for his manga series Lupin III, which debuted in Weekly Manga Action on August 10, 1967. Goemon is a thirteenth generation descendant of the renegade samurai Ishikawa Goemon. He is famous for a reticent personality coupled by apparent unlimited skill in martial arts and swordsmanship with his sword Ryusei (流星), known in the anime as Zantetsuken (斬鉄剣). A partner with Arsène Lupin III and Daisuke Jigen, he tends to join their exploits only on a when-interested basis.