Astroboy Memory Day (1963–1966) Online
Once a year in the 21st century, the citizens of earth celebrate Memory Day. On that day, they honor the memories of family members who have traveled so far into the universe that they are gone for years at a time!
| Episode credited cast: | |||
 | Esperanzita Martínez | - | Astroboy (voice) |
| Mari Shimizu | - | Atom (voice) |
| Billie Lou Watt | - | Astroboy (voice) |