Gigantor
Gigantor is an American adaptation of the anime version of Tetsujin 28-go, a manga by Mitsuteru Yokoyama released in 1956. Jimmy Sparks controls a gigantic, powerful robot and uses it to fight crime. It debuted on U.S. television in 1964. As with Speed Racer, the characters' original names were altered and the original series' violence was toned down for American viewers.
Below are the streaming services currently carrying the TV show “Gigantor” in the United States, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United States can differ from other countries.
Where to watch Gigantor in United States
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Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 14 Sept 2026.