Maleficent

Maleficent is a villain in Kingdom Hearts, Kingdom Hearts: Chain of Memories and Kingdom Hearts II. She is the evil sorceress from Sleeping Beauty. She is very manipulative and was first seen in Kingdom Hearts in Traverse Town.

In Kingdom Hearts
Maleficent masterminded behind the council of evil Disney characters seen numerous times in Kingdom Hearts such as Hades, Captain Hook, Oogie Boogie, Ursula, and Jafar. Pete, as her then-unseen henchman, had helped assembly this group and was off building an army of Heartless for her. Acting as a guide, Maleficent warned each of her followers that they should be wary of the darkness. She led this group in pursuit of ultimate power by controlling the Heartless and unlocking the Keyhole that leads to Kingdom Hearts, the heart of all worlds.

She uses Hollow Bastion, the former home of Ansem the Wise, as a base of operations where she directs the affairs of the group. She uses Ansem's report to help her control the Heartless and recruits Riku, Sora's best friend. Once she sees that Riku can wield a Keyblade, she uses the darkness in Riku's heart to corrupt him and turn him against his friends.

Maleficent eventually tells Riku her plans to find Kingdom Hearts, involving the Princesses of Heart. Maleficent persuades Riku to go after Kairi, as she is also a Princess. Maleficent lied to Riku and told him that she'd help Kairi regain her heart once she had control of the Kingdom Hearts.

One by one, each of the Disney villains failed to listen to her and each met their demise at the end of Sora's Keyblade (with the exception of Pete (Sora never met him until the next game), the immortal Hades (probably not a full-time member) and Captain Hook (who fled). Her knowledge and control of the powers of darkness had enabled her to control the Heartless, or so it seemed.  Unbeknownst to Maleficent, the Heartless were simply using her to reveal the keyhole in Hollow Bastion, and in the meantime were eating away at her heart. Maleficent eventually confronts Sora and she uses all her Dark Magic in an attempt to defeat him. Sora defeats her and Maleficent runs away. When Riku unlocked her heart, the darkness seeped into it, somewhat healing her wounds obtained when Sora battled her in the keep of Hollow Bastion.

Maleficent turned into a dragon (whether or not she could do it at will as in Sleeping Beauty is unknown), but the darkness did not see her through. Although she proved a far more dangerous enemy as a dragon, Sora still defeated her for the second time, the darkness ate her heart and she faded away into darkness.

By defeating Maleficent, Sora obtains the fifth page of Ansem's Report, and Sora learns the Cheer ability. Defeating Dragon Maleficent rewards Sora with the Fireglow, which unlocks the ability to summon Mushu if taken to the Fairy Godmother.

Stats

 * Maleficent
 * HP: 900
 * Attack: 31
 * Defense: 24
 * MP Recovery: 47
 * Experience Points: 6,000
 * Ability Resistance:
 * Fire efficiency is reduced to 49%
 * Blizzard efficiency is reduced to 50%
 * Gravity efficiency is reduced to 2%
 * Stop efficiency is reduced to 20%
 * Abilities that knock out the opponent have an efficiency of 50%
 * Other Abilities have an efficiency of 50%
 * Maleficent's Platform
 * HP: 120
 * Experience Points: 0
 * Dragon Maleficent
 * HP: 1200
 * Attack: 31
 * Defense: 24
 * MP Recovery: 48
 * Experience Points: 6,000
 * Ability Resistance:
 * Fire efficiency is reduced to 49%
 * Blizzard efficiency is reduced to 50%
 * Gravity efficiency is reduced to 4%
 * Stop efficiency is reduced to 20%
 * Abilities that knock out the opponent have an efficiency of 50%
 * Other Abilities have an efficiency of 50%

In Kingdom Hearts: Chain of Memories'
Maleficent appears to Riku as a memory-based illusion in Castle Oblivion. She is one of only two characters, along with Aerith in Sora's game, to realize that she is not real. She mocks her old student, and how he once clung to her and the darkness, before he stands up to her and kills her. Also, in Sora's game, she is the boss of Hollow Bastion and is revealed to need to steal hearts in order to practice her magic and attempts to use the love found in Belle and Beast's hearts to make herself invincible. When Sora and company attempt to stop her, she turns herself into a dragon and attacks, shooting flames from her mouth, causing earthquakes by stomping, and trying to eat Sora. But she fails and is defeated.

Card
See: Dragon Maleficent (Enemy Card)

In Kingdom Hearts II
Maleficent reappears in Kingdom Hearts II, in which she poses as a minor villain but she still plots against Sora and the others. Her raven, Diablo, brings her empty robe to Yen Sid's tower, and the memories of Flora, Fauna, and Merryweather accidentally bring her back to life. In Kingdom Hearts: Another Report, it is hinted that Organization XIII is responsible for her return.

Xemnas once sent Axel and Roxas to Hollow Bastion to wipe out heartless and release a raven from a cage suspended from the ceiling. It is heavily suggested that this crow is Diablo and was released to revive Maleficent. The Organization may have planned to use her to create more heartless for their plans. Like in Kingdom Hearts, she attempts to control the Heartless to locate Kingdom Hearts. However, she now competes with Organization XIII for supreme power and considers the group and Nobodies in general as vastly inferior to her and her Heartless, obviously deluding herself, never realizing that they were responsible for her resurrection in the first place to be nothing more than an unwitting pawn for them. Organization XIII always maintains the upperhand over her.

Maleficent, with the help of her only loyal follower remaining, Pete, goes from world to world reviving her other followers and building an army of Heartless. Although only Oogie Boogie is witnessed being revived, it may be guessed that she is also responsible for the return of Ursula and for Scar and Shan Yu using Heartless.

Maleficent reveals herself to Sora and his friends at Disney Castle when she tries to fill the Hall of the Cornerstone with Darkness in order to take over the Castle and make her new base of operations. Maleficent is defeated however by Sora when he and his friends go back in time and stop Pete from destroying the Cornerstone of Light. Maleficent appears in Holloween Town and tries to destroy Christmas town by resurrecting Oogie Boogie but his memory loss causes him to drive her away and Sora defeats Oogie Boogie. She then appears in Hollow Bastion during its invasion by Heartless, holding off the Nobodies so that Sora may escape and devise a way to defeat Organization XIII. Although she hated Sora, she realized that she couldn't defeat them herself, since they easily defeated her Heartless, and even took control of them from her.

She last appears in The World That Never Was, aiding Sora once more by fending off an immense wave of Heartless with the help of Pete while he defeats Xemnas, though she claims that she will take the castle for her own afterwards. Her ultimate fate is unknown.

Kingdom Hearts: Birth By Sleep
Maleficent makes an appearance in Kingdom Hearts: Birth By Sleep, not much information is given about her role, she is shown to be conversing with Terra.

Trivia

 * According to Jiminy Cricket, Maleficent was personally responsible for the destruction of her world and for the capture of Aurora. Maleficent is probably also responsible for the capture of Belle, Snow White, and Cinderella.
 * In the English versions in the three games, Maleficent is voiced by Susan Blakeslee. Susan Blakeslee also did the voice of Lady Tremaine in Cinderella 2 and Cinderella 3.  This may or may not be coincidental, as Maleficent and Lady Tremaine were also both voiced by the same person (in this case Eleanor Audley) in Sleeping Beauty and Cinderella respectively.

Cinematics

 * "Have you ever heard of Christmas Town?"
 * "What in the world do you think you're prattling on about? Kingdom Hearts belongs to me! The Heart of all Kingdoms! The Heart of all that lives! Any dominion fit to be called Kingdom Hearts must by my dominion!"
 * "I do not take orders from you!"
 * "Why Pete, this castle is perfect! Perhaps we should...accquire it?"
 * "Once again, you underestimate me."
 * "Poor, simple fools! Did you really think you could defeat me?! ME, the mistress of all evil!?"

During Battle

 * "Meteors of heaven, unleash thy fury!"
 * "Now you'll know the meaning of fear!