Diablo is a black raven familiar from Disney’s Cinderella, appearing in Kingdom Hearts III as an enemy associated with the Cinderella world elements and the broader Disney crossover cast. He is a loyal, sharp-eyed companion to Lady Tremaine and is often portrayed as sly, watchful, and intimidating. In the game’s context, Diablo functions more as a supporting Disney character than a major plot driver, helping reinforce the fairy-tale atmosphere and the antagonistic presence tied to Cinderella’s story.