
Atom Tetsuwan
main character



In the distant year 2003, Japan is a technological utopia, and robots are everywhere. One such robot, Tobio, was built by the brilliant Dr. Tenma to replace his dead son. But when it soon becomes apparent that Tobio is an imperfect copy of his departed child, Dr. Tenma throws him out. He is rescued from the scrap heap by the benevolent Professor Ochanomizu, a crusader for robot civil rights. Now the little robot, renamed Astro Boy, is given a mission to defend Japan and the world from all manner of sinister threats. Using his seven super-abilities and 100,000 horsepower worth of strength to battle evil, Astro hopes to set an example to the world of the good which all robots are capable of.
Astro Boy has been met with mixed reactions, with an average AniList score of 65/100 — 34% of 1,034 ratings are 8/10 or higher.
Of the 2.4K AniList users who started it, 17.5% dropped it, so it is dropped more often than most; 1.4K have finished it.
At roughly 83 h 38 min in total, it is a long commitment — about 12 weeks at an hour a day.
Best for viewers who enjoy Action, Adventure, Drama — especially robots, shounen, episodic, artificial intelligence.
Availability, audio and subtitles vary by region and service.
193 episodes are listed.
Theme data from AnimeThemes.moe.
Astro Boy has 193 episodes of about 26 minutes each, roughly 83 h 38 min in total.
About 83 h 38 min back to back. At two episodes a day it takes 97 days; at one hour a day, about 84 days.
Yes. Astro Boy has finished airing — the final episode aired December 31, 1966.
No sequel is listed for Astro Boy as of October 2026. You can continue the story in the original manga.
Watch Atom: The Beginning first — Astro Boy is a direct sequel.
Yes. Astro Boy adapts the manga by Osamu Tezuka.
Astro Boy was animated by Mushi Production and directed by Osamu Tezuka.
The opening, "Tetsuwan Atom", is performed by Kamitakada Shounen Gasshoudan.
Astro Boy is listed on RetroCrush. Availability varies by region — check the streaming links on this page.