1 Main 2 Supporting 3 D1 Grand Prix 4 Minor Aki Izayoi Yeager Lua / Rua Luca / Ruka Kyosuke Kiryu Mikage Sagiri Mukuro Enjo Tetsu Ushio Bommer Jin Himuro … Yu-Gi-Oh! The main characters of the show are Signers (シグナー, Shigunā), people who bear the Mark of the Crimson Dragon, a deity worshiped by a civilization that defended the world from the Red Nova with the help of the Signer Dragons, powerful dragons that have been turned into Duel Monsters cards that the current Signers now possess. Signers are chosen by the Crimson Dragon to protect the world from evil. 5D's *Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.