#62 - Gerudo Knuckle

Removing the helmet from Iron Knuckle in Ocarina of Time reveals that it's actually a Gerudo thief in armor. The model used is completely different to any other model in the game. However, this may not be official since this isn't the case for the remake.

SOURCE: https://zeldauniverse.net/forums/Thread/151589-Zelda-OoT-Theory-Gerudos-in-Iron-Knuckle-Armor/