Master Yen Sid

Master Yen Sid is a powerful sorcerer introduced in Kingdom Hearts II, and originally taken from the "The Sorcerer's Apprentice" short in the Disney film Fantasia. He is a retired Keyblade Master, renowned for his wisdom and command over the arts of magic. Although he is no longer an active Keyblade Master, he still keeps a close watch on the balance between light and darkness. He was once Mickey Mouse's master, and taught him everything he knows of magic and the Keyblade.

Kingdom Hearts II
Yen Sid serves as Sora's tutor to what lies ahead of him in his journey. When Sora and company (Donald Duck and Goofy) arrive, he tells them of the enemies that they will face in the near future (Heartless, Nobodies, and Organization XIII). He also returns their Gummi Ship to them, which he had been safekeeping, and sends them to Hollow Bastion.

When Diablo brings Maleficent's cloak to Flora, Fauna, and Merryweather, causing her to be revived, the fairies rush off to tell Yen Sid. However, by the time Sora and his friends can return to the tower, Yen Sid and the fairies are nowhere to be found.

Kingdom Hearts III
Yen Sid later arrives in the Keyblade Graveyard after a third wave of Heartless, Nobodies and Unversed were called to wear down the guardians for the Organization. Using his magic, Yen Sid repels the creatures with a wall of light, allowing the seven guardians to head into battle, while Donald and Goofy stay behind to back him up.

Following Xehanort's defeat, Yen Sid journeys to Disney Castle with the King, Donald and Goofy. They are greeted by Minnie, Daisy, Chip, Dale and Pluto as fireworks erupt above to celebrate their victory.

Voice Actors

 * Corey Burton