What Could Have Been: There were earlier drafts on the game script that were different than in the final product, such as differences in the puzzles (for example, there were clues on the walls of the Catacombs that would tell you how to move around the Catacombs) and in the storylines (e.g., the copper Daventry coin had the face of Queen Valanice rather than King Graham; Alexander sending a wrong poem to Cassima; the old coins being made out of gold rather than copper; the black feather remaining black rather than changing color after stirring in the teacup of the Magic Paint mixture; and the "Drink Me" Potion bottle being empty, forcing Alex (and the Pawn Shop Owner) to go into Plan B, i.e., Faking the Dead rather than a Faux Death). In spite of this, many of these drafts either changed or never came into fruition at all. All of these can be found in the Novelization of the game in the King's Quest Companion Booklet.
The original plan for the Winged Ones was to have them be entirely albino, looking rather like ancient Roman statues whose paint has worn off—with marble-white skin, white hair, and blank white eyes. This was even to extend to their clothing. In the final game they look more like actual flesh-and-blood Romans instead.