Gozaburo Kaiba

Gozaburo Kaiba is the original leader of Kaiba Corp in the anime Yu-Gi-Oh. His son Noah was nearly killed in a car accident, so he uploaded his mind into the virtual world so save him, and adopted Seto Kaiba and his brother Mokuba so Noah could enter Kaiba's body, but soon became more interested in teaching Kaiba. He gave Kaiba a large amount of money and told him to pay him back to truly become a member of Kaiba Corp, with Lector of the Big Five as the only one allowed to help him. He was able to do this, and eventually with the help of Mokuba, took over Kaiba Corp. Gozaburo vanished without a trace after this, uploading his own mind into the virtual world.

There, he and Noah attempted revenge on Kaiba, teaming up with the Big Five once they became trapped in the virtual world. The Big Five were defeated by Yugi and Joey and trapped by Noah, and Noah was defeated by Yugi. Gozaburo dueled Kaiba, and at first he seemed invincible due to his even more powerful version of Exodia, Exodia Necross, who was invincible, until Kaiba removed the Exodia cards from the graveyard (where they needed to be for Exodia Necross to exist), and Kaiba defeated Gozaburo. He transformed into a beast of flame and attacked Kaiba, but Noah, who had previously set the virtual world's fortress to selfdestruct, held him im place, and he was deleted along with the virtual world. However, he managed to reappear in the real world as a real beast of flame (possibly as some sort of ghost) in an attempt to eat the blimp Kaiba and the others were escaping in, but the blimp escaped Gozaburo, who vanished for good as the flames died down to regular fire.