Astro Boy: Mighty Atom – Visitor of 100,000 Light Years, IGZA
The interplanetary spacecraft Galileo II carries Atom and his friends to Titan, a satellite of Saturn. However, what awaits them when they arrive there is an attack from an unknown entity. What appears is a mechanical life form called "Igza" that wants to destroy humans. The battle between Atom and Igza unfolds in the far reaches of space.
| Actor | Role |
|---|---|
 Makoto TsumuraAstro Boy/Atom (voice) | Astro Boy/Atom (voice) |
 Miki MaruyamaUran (voice) | Uran (voice) |
 Hisashi KatsutaDr. Ochanomizu (voice) | Dr. Ochanomizu (voice) |
 Ami KoshimizuEna (voice) | Ena (voice) |
 Chikao OhtsukaDr. Tadeue (voice) | Dr. Tadeue (voice) |
 Unsho IshizukaIgza (voice) | Igza (voice) |
 Motoko KumaiTamao (voice) | Tamao (voice) |
 Susumu ChibaShibugaki (voice) | Shibugaki (voice) |
| YYuuko SatouKenichi (voice) | Kenichi (voice) |
 Toshihiko NakajimaCaptain (voice) | Captain (voice) |
| AAkiko KawaseFemale Personnel (voice) | Female Personnel (voice) |
 Eiji MiyashitaOperator (voice) | Operator (voice) |
 Keiichi SonobeArifi (voice) | Arifi (voice) |