Ankh

Ankh is one of the main characters in the series of Kamen Rider: OOO. He is the bird Greeed & anti-hero/rogue throughout the series. Unlike his fellow Greeed, he has alliance to the protagonist Kamen Rider OOO, mainly because of his inability to assume his full form & his lack of trust towards the other Greeed. However, when he regains his physical form, Ankh becomes OOO's enemy until he joins with OOO once again shortly before the final battle; Ankh was unable to kill Ethan due to the time he had spent with him, although his switching sides once more was contributed to by his newfound capacity for feeling deeper emotions. He was attacked by Leach while defending Ethan resulting in the Hawk Medal containing Ankh's consciousness being cracked. When he let Ethan use this Medal against Leach in the final battle, it split in half, but remained otherwise intact. His Core Medals are: Hawk, Peacock, & Condor.

Overview
Ankh, like the rest of the Greeed, was created 800 years ago through the Core Medals. Ankh however paired up with the First Kamen Rider OOO to fight the other Greeed until he was betrayed by the greedy king. When the First OOO attempted to absorb the power of all the Core Medals, the king was turned into a stone coffin sealing the Greeed & Ankh's right forearm containing the Core Medal with his consciousness while the rest of his body was mummified & preserved in Europe.

In present times, he unseals himself & the other Greeed completely, while stealing some of the others' Core Medals in the process to get an advantage over them. However, he loses one of his Hawk Medals when Ethan takes it by accident. He originally intends to force Ethan to return his medal, but when the Mantis Yummy attacks him when trying to retrieve other Core Medals he has stolen from his fellow Greeed, Ethan saves him. To return the favor, while intending to make Ethan a pawn in his scheme, Ankh saves the human by giving him some of the Core Medals he has & enabling him to transform into Kamen Rider: OOO.

After the Yummy is destroyed, Ankh takes the body of the detective Truman de la Fuente, who was mortally wounded in the attack, causing Truman's hair to spike up with a dull blonde color. As Ankh explains, he intends to use Truman's body as his temporary vessel, thus keeping Truman barely alive, so he could move about unnoticed while feeding on as many Cell Medals as he can to regain his complete form. However, when Ethan proves far more strong willed than he thought, Ankh is forced into promising him to give Ethan the OOO Driver so he could save lives rather than just to gather Cell Medals for Ankh.

Eventually, Ankh reveals his reasons for wanting the Core Medals is so he can evolve into a stronger being. However, after reabsorbing his two Core Medals & only able to project a single rainbow-hued wing from his shoulder, Ankh's inability to regenerate attracts Ethan's concern. The mystery deepens when a being resembling Ankh's left forearm appears & creates two Parrot Yummy in an attempt to take his counterpart's Core Medals, eventually forced to regenerate into a near-complete being to support Kazari & Leach while attempting to asborb Ankh & become whole.

After his counterpart has been destroyed, Ankh retakes Truman's body as his remaining Core Medals cannot maintain his new body. Having regained his full powers as a Greeed, taking back his Hawk Medal from Ethan, Ankh offers to help Leach in gaining the Purple Core Medals in return of becoming the vessel for all the other Core Medals. Reviving Uva, Ankh then joins forces with the other Greeed & rallies them against Ethan. However, counting on Ethan's new-found ability to destroy Core Medals, Ankh formulates a reckless plan to have OOO eliminate the other Greeed so he can use their Core Medals to convert Truman's body into a Greeed form. When Leach becomes disappointed with Ankh's choices being driven more by ambition than desire. Later, Ankh goes to fight with Ethan, but ends up talking with him about how he is disgusted by Ethan's lack of desire when Ethan has something he desires most: life. Just as things seem calm, Leach appears on a cliff, & adds another Purple Core to Ethan, making him unstable & forcing him to assume the Purple Eyed Multi Combo. Ankh tries to calm him down, but when Leach adds another Core, this forces him to fight Ethan, now as the Ethan Greeed, in his newly-regained complete form. After the fight, when Ankh refuses to kill Ethan, or let Leach kill him, due to the memories of their time together, Leach changes his plans & takes the Medals from Ankh by force, while leaving him with one set of Core Medals. However, the Hawk Medal that contains his consciousness is severely cracked. He tries to get back to Ethan, but collapses in a forest, bleeding Cell Medals. Amy finds him but Ankh tells her simply "Don't tell Ethan about my Medal."