Ultraman (ウルトラマン, Urutoraman)^[4] is a fictional superhero who debuted in the pilot episode to his 1966 TV series of the same name, entitled "The Birth of Ultraman". He is the first tokusatsu hero launched by the Ultra Series and by extension, Tsuburaya Productions. His appearance in the entertainment world helped spawn the Kyodai Hero genre with countless shows such as Godman and Iron King.

Ultraman first appeared as the title character alongside his human host Shin Hayata in the 1966 Japanese television series, Ultraman which ran for 39 episodes. Following Ultraman's success, Tsuburaya created another Kyodai hero series still as part of their Ultra Series project, Ultraseven. While both series shared the same genre with very similar heroes, there was originally no relationship between the two. It was not until The Return of Ultraman was created four years later in 1971 that both Ultraman and Ultra Seven came together into the same story. This event cemented Tsuburaya Productions' decision to have the Ultra Series continue to follow the trend of focusing on an Ultraman with each new entry. The original red-and-silver giant hero himself enjoyed a long series of popularity and has continued to appear in various works in the Ultra Series. Apart from that, he also has a lot of popularity trademarks that make him memorable to this day: his Color Timer, the Specium Ray stance, and his famous cry "Shuwatch" (シュワッチ, Shuwatchi).