Annihilus

The ruler of the strange dimension known as The Negative Zone, Annihilus was tricked by Dr. Doom into thinking that The Fantastic Four were his enemies and that they had come to try and take his kingdom from him.

He eventually realised that Doom had tricked him and only sought alliance with him so he could steal his source of power and rule over our dimension. Reed eventually defeated Doom, leaving Annihiuls to do what he pleased with him.

In Ultima, Annihilus is a member of the Organization, and one of the Space Alien Grunt Commanders due to his control over his magic wand and immense strength.