Original
04/06/2003 - 03/28/2004 Finished
Astro Boy: Tetsuwan Atom (アストロボーイ・鉄腕アトム)
Also known as: Astro Boy (2003)
At the Ministry of Science, fervent Professor Ochanomizu alongside his coworkers strive to reactivate Atom—the first robot with a human heart. Atom is the masterpiece of enigmatic Professor Umatarou Tenma, who built the android to replace his deceased son Tobio. However, while Tenma inexplicably shut down his brainchild and disappeared, Ochanomizu refuses to let such a major breakthrough in science go to waste. Despite having the appearance of a nine-year-old, Atom not only possesses incredible strength and intelligence, but he is also endowed with a remarkable conscience and compassion that rivals humans. Sadly, the mechanical boy soon faces rejection and learns that not everyone is as welcoming as Ochanomizu. Although automatons have integrated into society, they are accepted only as tools and even seen as an upcoming threat to mankind's dominion. Dreaming of a world where people and robots can prosper together, Atom dedicates his existence to protecting the lives of both and inspiring them to form genuine bonds.
50
Total episodes
50
Canon episodes
0
Filler episodes
0%
% Filler
Canon episodes · 50 Filler episodes · 0
Every season
Seasons and sequels
You may wonder, how many seasons does Astro Boy: Tetsuwan Atom have? Well, currently Astro Boy: Tetsuwan Atom has a total of 4 official seasons. Below is a complete list of the anime's seasons, arranged chronologically, including prequels, sequels, and canonical spin-offs.
Discover all seasons and episodes of this anime in broadcast order. Each season develops a key part of the story, introducing new characters, story arcs, and important events. Select any season to view detailed information such as the number of episodes, release dates, and a complete plot description.
Original
Secuela
Secuela
SecuelaWhat to watch, what to skip
Watch order: filler vs canon
You're in luck! Astro Boy: Tetsuwan Atom doesn't have a single filler episode: all 50 episodes are canon. It's a faithful adaptation of the original manga, so you can enjoy it from first to last without skipping anything or checking any list of expendable episodes.
The 50 episodes of Astro Boy: Tetsuwan Atom aired in 2003–2004 and follow the story's chronological order. There are no transition episodes, no needless recaps, no arcs invented by the studio: every chapter advances the main plot and develops the characters just as the source material does.
In short, the watch order for Astro Boy: Tetsuwan Atom is as simple as it gets: start at episode 1 and keep going to episode 50 without detours. If you came looking for which Astro Boy: Tetsuwan Atom episodes are filler so you could skip them, the answer is that there aren't any.
Episode by episode
Complete guide by season
50 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | Power Up!04/06/2003 | 04/06/2003 | Canon |
| 2 | Robot Ball04/13/2003 | 04/13/2003 | Canon |
| 3 | Atom Goes to Space / Destination Deimos04/20/2003 | 04/20/2003 | Canon |
| 4 | Lightning / Into Thin Air04/27/2003 | 04/27/2003 | Canon |
| 5 | Save the Robot Farm! / Rainbow Canyon05/04/2003 | 05/04/2003 | Canon |
| 6 | Birth of Atlas / Atlas05/11/2003 | 05/11/2003 | Canon |
| 7 | Atom vs. Atlas / Astro vs. Atlas05/18/2003 | 05/18/2003 | Canon |
| 8 | Robot Super Express / Neon Express05/25/2003 | 05/25/2003 | Canon |
| 9 | Franken06/01/2003 | 06/01/2003 | Canon |
| 10 | Attack of the Venusian Robots! / The Venus Robots06/08/2003 | 06/08/2003 | Canon |
| 11 | The Robot Circus is Here! / Robot Circus06/15/2003 | 06/15/2003 | Canon |
| 12 | Jumbo Revived / Reviving Jumbo06/22/2003 | 06/22/2003 | Canon |
| 13 | Birth of Uran / Little Sister, Big Trouble07/06/2003 | 07/06/2003 | Canon |
| 14 | Micro's Big Adventure / Micro Adventure07/13/2003 | 07/13/2003 | Canon |
| 15 | Protect the Artificial Intelligence! / Only a Machine07/20/2003 | 07/20/2003 | Canon |
| 16 | Dark Robot Hunters / Robot Hunters07/27/2003 | 07/27/2003 | Canon |
| 17 | Earth's Strongest Robot / The Rise of Pluto08/03/2003 | 08/03/2003 | Canon |
| 18 | Pluto is Undying / The Fall of Acheron08/10/2003 | 08/10/2003 | Canon |
| 19 | Robot Boy08/17/2003 | 08/17/2003 | Canon |
| 20 | Eternal Boy / Eternal Children08/24/2003 | 08/24/2003 | Canon |
| 21 | Lake Monster / Dragon Lake08/31/2003 | 08/31/2003 | Canon |
| 22 | Goodbye Princess / The Legend of Tohron09/07/2003 | 09/07/2003 | Canon |
| 23 | Lost Memory / Lost in Outland09/14/2003 | 09/14/2003 | Canon |
| 24 | Little Bears / The March of the Micro Bears09/21/2003 | 09/21/2003 | Canon |
| 25 | If I Could Shed a Tear / Deep City09/28/2003 | 09/28/2003 | Canon |
| 26 | Enter the Blue Knight / The Blue Knight10/05/2003 | 10/05/2003 | Canon |
| 27 | Higeoyaji, the Famous Detective / Old Dog, New Tricks10/12/2003 | 10/12/2003 | Canon |
| 28 | Space Plant Crisis / Hydra-Jacked10/19/2003 | 10/19/2003 | Canon |
| 29 | Uran and the Famous Detective / The Case of the Phantom Fowl10/26/2003 | 10/26/2003 | Canon |
| 30 | Underground Exploration / Geo-Raider11/02/2003 | 11/02/2003 | Canon |
| 31 | Goonon's Big Adventure / Gideon11/09/2003 | 11/09/2003 | Canon |
| 32 | Secret of the Blue Knight11/16/2003 | 11/16/2003 | Canon |
| 33 | Fairy Tale11/23/2003 | 11/23/2003 | Canon |
| 34 | Shape-Shifting Lifeform Moopie / Shape Shifter11/30/2003 | 11/30/2003 | Canon |
| 35 | Atom vs. Rock / Firebird12/07/2003 | 12/07/2003 | Canon |
| 36 | Robot in Love / Space Academy12/14/2003 | 12/14/2003 | Canon |
| 37 | Atlas Strikes Back12/21/2003 | 12/21/2003 | Canon |
| 38 | Emily's Wish / Battle-Bot12/28/2003 | 12/28/2003 | Canon |
| 39 | Time Hunters01/11/2004 | 01/11/2004 | Canon |
| 40 | Robot Hatred / Escape from Volcano Island01/18/2004 | 01/18/2004 | Canon |
| 41 | Memories of a Giant / Avalanche01/25/2004 | 01/25/2004 | Canon |
| 42 | Battle of Steel Island02/01/2004 | 02/01/2004 | Canon |
| 43 | The Robot That Yearned to Be Human / Undercover02/08/2004 | 02/08/2004 | Canon |
| 44 | To the Dragon Forest / Into the Dragon's Lair02/15/2004 | 02/15/2004 | Canon |
| 45 | The Night Before the Revolution02/22/2004 | 02/22/2004 | Canon |
| 46 | The Founding of Robotania / Robotania02/29/2004 | 02/29/2004 | Canon |
| 47 | Decisive Battle of Antarctica! / Showdown at Robotania03/07/2004 | 03/07/2004 | Canon |
| 48 | Journey to Tomorrow03/14/2004 | 03/14/2004 | Canon |
| 49 | Atom Reborn / Astro Reborn03/21/2004 | 03/21/2004 | Canon |
| 50 | The Final Battle03/28/2004 | 03/28/2004 | Canon |
Verified legal platforms
Where to watch Astro Boy: Tetsuwan Atom
All the platforms where you can watch Astro Boy: Tetsuwan Atom legally, with direct links to each service.
We don't have confirmed streaming platforms for this anime yet.
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Common questions
Frequently asked questions
How many seasons does Astro Boy: Tetsuwan Atom have?
Astro Boy: Tetsuwan Atom has a total of 4 seasons. The series is completed. Each season is divided into multiple episodes with stories that advance the main plot of the anime.
How many episodes does Astro Boy: Tetsuwan Atom have?
In total, Astro Boy: Tetsuwan Atom has 50 episodes distributed across its 4 seasons. You can consult the complete episodes table to see the breakdown by season.
What is the best order to watch Astro Boy: Tetsuwan Atom?
It is recommended to watch Astro Boy: Tetsuwan Atom in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Where can I watch Astro Boy: Tetsuwan Atom online?
Astro Boy: Tetsuwan Atom is available on various legal streaming platforms. Check the platforms section at the top of this page to see where it's currently available. Options may vary depending on your geographic region.
Is Astro Boy: Tetsuwan Atom a complete anime?
Yes, Astro Boy: Tetsuwan Atom is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
How much filler does Astro Boy: Tetsuwan Atom have?
No, Astro Boy: Tetsuwan Atom does not have filler episodes. All its episodes are canon and faithfully follow the original manga story, so you can watch all episodes without worrying about skipping anything.
Where can I see Astro Boy: Tetsuwan Atom's score and reviews on MyAnimeList?
You can check the score, reviews, characters and statistics for Astro Boy: Tetsuwan Atom directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.