Go Astro Boy Go!, known as Go! Go! Atom (GO!GO!アトム) in Japan, is a spin-off series of Astro Boy. The series was developed by French animation company Planet Nemo Animation and produced by Tezuka Productions.¹⁾. It is the second internationally co-produced Astro Boy television series after the 2014 Astro Boy series, Little Astro Boy.

The series was announced in 2016 on the Japanese site Nikkei Style via Planet Nemo²⁾. The series was originally titled Little Astro Boy (not to be confused with the 2014 Astro Boy series)³⁾ before being renamed to Go Astro Boy Go! in 2018.

China first aired the series via Mango TV starting on August 2, 2019 and ending later in 2019. Japan aired the series via TV Tokyo on their Kids Station starting on October 3, 2019 and ending on October 1, 2020. Multiple countries and regions have partnered with Planet Nemo (also known as Planet Ankama) to air Go Astro Boy Go! via streaming services and/or television networks, including the United Kingdom, the Middle East, North Africa, Russia, Mexico, Hong Kong, Thailand, Taiwan, Indonesia, and Malaysia.⁴⁾

The target audience is upper preschool children⁵⁾.

The series has 52 episodes that air for roughly 11 minutes.

* Astro (Atom) — The star of the show! Built by Dr. Ochanomizu, Atom saves the day with his powers equipped in his robotic body. He is the leader of Team Astro, a trio which is also accompanied by Astro Kitty and Suzu.

* Astro Kitty (Atonyan) — Based on Atom Cat. Astro Kitty often gets himself into trouble of his own violition, but also tends to save the day through his own strengths and powers. He has many of the same powers as Atom.

* Suzu — Dr. Ochanomizu's granddaughter. Suzu takes after her grandfather with her knowledge, though learns many things through Dr. Ochanomizu. She often squabbles with Astro Kitty but never in a mean way. She has no powers of her own, but often has gadgets such as her flying bike to help Team Astro save the day.

* Professor Elefun (Doctor Ochanomizu) — The fatherly figure of the protagonists. Ochanomizu built Atom and Astro Kitty. Through the portal he designed, called the Mage, Ochanomizu sends Team Astro into situations for them to solve in order to save the day.

* Dr. Blunt (Dr. Brant) — The comic relief character. Dr. Blunt often suffers the consequences of his actions through his own hubris. Despite being a doctor, Blunt may not actually be very smart.

* Dr. Serene — A doctor at the lab where Team Astro and company reside. She's not known for being a good cook, but she leads the charge in scientific studies and experiments at the lab.

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