The designs for Philip and the two boys at the beginning (Derek and Howie) were designed by Alice Hamm. All character models were finalized on November 19, 1984.
The character model for the Jawlik was previously used as Arakna in Fisto's Forest (1984) and as the spider in the Abyss in The Problem with Power (1985).
The character of Mekaneck's son, Philip, is not the same as the young Royal Guard also named Philip in The Ice Age Cometh (1984).
Count Marzo and Chimera previously appeared in The Once and Future Duke (1983) & The Eternia Flower (1985). Marzo also uses a Pterror-dactyl like he did in his debut, but this time the creature is blue instead of brown.