Zarnax

Zarnax is a nobody in Kingdom Hearts: Heartspawn. He is number IV of The Final Six.

Pre KH:H
At some point in his life, a man named Naraz lost his heart. His nobody became Zarnax, the fourth subject of an experiment started by the late Organization XIII. He was trained by Xigbar and Luxord to achieve their abilities. Soon before the Castle Oblivion incident, Zarnax and the other five experiments were sealed inside sleeping pods, in order to preserve them for the future if the Organization failed their mission. The experiments awoke fifteen years later, finding the Organization destroyed. They formed The Final Six in order to finish their master's mission; restoring Kingdom Hearts.

KH:H
In Kingdom Hearts: Heartspawn, Axon sent Zarnax to Narnia to collect hearts and search for the Heartspawn. He gave the White Witch an army of Madsouls to defeat the Army of Aslan the Lion and the boy-king, Peter. Blain and his friends arrived in Narnia and tried to help Aslan's army stop Zarnax and the Witch. After Blain and co. confronted and defeated him, Zarnax revealed the truth about the madsouls; they are a persons rage and anger manifested into a living being with the ability to steal hearts. Zarnax then escaped to The World that Never Was, via a dark portal. During Blain's siege on The Castle that Never Was, Zarnax faced Blain and friends again. He boasted about his strength and cosmic power, but was defeated in the end. As he faded into darkness, he screamed in disbelief that he had been defeated again by the likes of Blain.