The home planet of the Herculoids was named Amzot. When new Herculoids story-lines were written for Space Stars (1981), the planet was renamed Quasar.
According to early character model sheets by Alex Toth, the character of Zandor was originally called "Zartan". Likewise, his son Dorno was originally called "Domo". The name of the other characters like Tara and the Herculoids remained unchanged.