AnimationAction & AdventureSci-Fi & Fantasy2003–2004Fuji TVKansai TV

The Best Episodes of Astro Boy

Every episode of Astro Boy ranked from best to worst. Let's dive into the Best Episodes of Astro Boy!

Best episode
S1E43 Undercover
8.613 votes
Worst episode
S1E1 Power Up!
7.131 votes
Top season
Season 1
7.8avg
Binge time
20h 0m
50 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons1

All1

Episode Rankings

  1. #1 Fan Favorite
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    Astro Boy Season 1 Episode 43 - Undercover
    8.6/10(13 votes)

    S1:E43

    No description available

    Director:Unknown
    Writer:Unknown

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  2. Astro Boy Season 1 Episode 35 - Firebird
    8.7/10(10 votes)

    S1:E35

    No description available

    Director:Unknown
    Writer:Unknown

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  3. Astro Boy Season 1 Episode 50 - The Final Battle
    8.4/10(18 votes)

    S1:E50

    No description available

    Director:Unknown
    Writer:Unknown

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  4. Astro Boy Season 1 Episode 32 - The Secret of Blue Knight
    8.4/10(9 votes)

    S1:E32

    When Astro and The Blue Knight try to stop illegal, underground robot fights, they are forced to fight each other. As they prepare for battle, Astro learns the truth about The Blue Knight's past.

    Director:Unknown
    Writer:Unknown

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  5. Astro Boy Season 1 Episode 46 - Robotonia
    8.3/10(12 votes)

    S1:E46

    No description available

    Director:Unknown
    Writer:Unknown

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  6. Astro Boy Season 1 Episode 47 - Showdown in Robotonia
    8.3/10(12 votes)

    S1:E47

    No description available

    Director:Unknown
    Writer:Unknown

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    The 20 WORST Episodes of Astro Boy

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  7. Astro Boy Season 1 Episode 48 - Journey to Tomorrow
    8.2/10(10 votes)

    S1:E48

    No description available

    Director:Unknown
    Writer:Unknown

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  8. Astro Boy Season 1 Episode 37 - Atlas Strikes Back
    8.3/10(7 votes)

    S1:E37

    No description available

    Director:Unknown
    Writer:Unknown

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  9. Astro Boy Season 1 Episode 36 - Space Academy
    8.2/10(9 votes)

    S1:E36

    No description available

    Director:Unknown
    Writer:Unknown

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  10. Astro Boy Season 1 Episode 7 - Astro Vs. Atlas
    8.1/10(11 votes)

    S1:E7

    As Atlas continues his rampage, Astro learns the truth about his own past. With the memory circuits reactivated, Astro remembers being created, rejected, abandoned by Dr. Tenma, Astro must face difficult questions about his own identity and his ultimate destiny.

    Director:Unknown
    Writer:Unknown

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  11. Astro Boy Season 1 Episode 38 - Battle-Bot
    8.1/10(11 votes)

    S1:E38

    No description available

    Director:Unknown
    Writer:Unknown

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  12. Astro Boy Season 1 Episode 45 - Night Before the Revolution
    8.1/10(11 votes)

    S1:E45

    No description available

    Director:Unknown
    Writer:Unknown

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  13. Astro Boy Season 1 Episode 49 - Astro Reborn
    8.1/10(10 votes)

    S1:E49

    No description available

    Director:Unknown
    Writer:Unknown

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  14. Astro Boy Season 1 Episode 27 - Old Dog, New Tricks
    8.2/10(6 votes)

    S1:E27

    Astro partners with Yuko's Uncle Wally to solve a series of baffling robberies involving a dragon-like robotic monster.

    Director:Unknown
    Writer:Unknown

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  15. Astro Boy Season 1 Episode 23 - Lost In Outland
    8.1/10(8 votes)

    S1:E23

    While saving the planet from a falling satellite, Astro is damaged and loses his memory. Boon, a scientist with a mysterious past, tries to help Astro recover before another satellite hits Earth.

    Director:Unknown
    Writer:Unknown

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  16. Astro Boy Season 1 Episode 25 - Deep City
    8.1/10(7 votes)

    S1:E25

    An underground city threatens the environment, so the environment fights back--tree roots attack the city and its people. Astro must restore the delicate balance of nature to save the humans.

    Director:Unknown
    Writer:Unknown

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  17. Astro Boy Season 1 Episode 18 - The Fall of Archeron
    8.0/10(10 votes)

    S1:E18

    No description available

    Director:Unknown
    Writer:Unknown

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  18. Astro Boy Season 1 Episode 28 - Hydra-Jacked
    8.0/10(10 votes)

    S1:E28

    A power station orbiting the Earth is set to self-destruct, and Astro partners with the Blue Knight to try to save the robots. They uncover a secret regarding the corrupt humans who caused the danger.

    Director:Unknown
    Writer:Unknown

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  19. Astro Boy Season 1 Episode 40 - Escape from Volcano Island
    8.0/10(10 votes)

    S1:E40

    No description available

    Director:Unknown
    Writer:Unknown

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  20. Astro Boy Season 1 Episode 20 - Dawn of the Techno-Revolution
    8.0/10(9 votes)

    S1:E20

    With his authority challenged by Shadow, Dr. Tenma sets out to prove that Astro is loyal to the robot cause and will join them in leading the robot revolution.

    Director:Unknown
    Writer:Unknown

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  21. Astro Boy Season 1 Episode 41 - Avalanche
    8.0/10(9 votes)

    S1:E41

    No description available

    Director:Unknown
    Writer:Unknown

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  22. Astro Boy Season 1 Episode 14 - Micro Adventure
    8.0/10(8 votes)

    S1:E14

    A micro-robot attacks Zoran's operating system from the inside. Astro must shrink down to microscopic size and go inside of Zoran's system to fight the micro-robot and save his sister.

    Director:Unknown
    Writer:Unknown

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  23. Astro Boy Season 1 Episode 26 - The Blue Knight
    8.0/10(8 votes)

    S1:E26

    When air-blimp is threatened with a wormhole device, Astro is blamed and arrested. The Blue Knight helps him escape from jail, and together they must save the blimp and prove Astro's innocence.

    Director:Unknown
    Writer:Unknown

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  24. Astro Boy Season 1 Episode 15 - Only a Machine
    8.0/10(7 votes)

    S1:E15

    Astro must stop Erasabot from sucking out the artificial intelligence from all the robots in Metro City.

    Director:Unknown
    Writer:Unknown

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  25. Astro Boy Season 1 Episode 3 - Destination Deimos
    7.9/10(15 votes)

    S1:E3

    On Deimos, one of the two moons of Mars, robot miners ignore the orders of their human foreman and mysteriously begin digging on their own. Astro must work fast to discover the cause of the robots' strange behavior before Intergalactic Security exterminates them for disobeying.

    Director:Yukio Suzuki
    Writer:Chiaki J. Konaka

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Best Episodes Summary

"Undercover" is the best rated episode of Astro Boy. It scored 8.6/10 from 13 votes. Written and directed by Unknown, it aired on February 8, 2004.

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