Shadow Weaver's disguise as an elderly lady is a reuse of the character model for old Castaspella from Enchanted Castle (1985).
The Chibbit, a rabbit-like creature, was previously seen in The Reluctant Wizard (1985)]. Although it was not identified at that time, the script originally called it a ''Squabbit".
The character models for Spinnerella and Netossa were designed by character artist Dale Hendrickson.
This is the only time Catra falls down Hordak's trap door.