Suggestions by @gabrielmadalin1

Zim (Invader Zim)

as Main Antagonists in The Multiverse Wars (My Version)

Tak (Invader Zim)

as Main Antagonists in The Multiverse Wars (My Version)

Vlad Masters (Vlad Plasmius)

as Main Antagonists in The Multiverse Wars (My Version)

Lute (Hazbin Hotel)

as Main Antagonists in The Multiverse Wars (My Version)

Adam (Hazbin Hotel)

as Main Antagonists in The Multiverse Wars (My Version)

Mag Agent: N (Madness Project Nexus)

as Main Antagonists in The Multiverse Wars (My Version)

The Auditor

as Main Antagonists in The Multiverse Wars (My Version)

Mr. Puzzles

as Main Antagonists in The Multiverse Wars (My Version)

Vexus

as Main Antagonists in The Multiverse Wars (My Version)

J (Murder Drones)

as Main Antagonists in The Multiverse Wars (My Version)

Doctor Eggman

as Main Antagonists in The Multiverse Wars (My Version)

Chad Jarman/Elite Crew (Counter Strike)

as Main Antagonists in The Multiverse Wars (My Version)

Henry Stewart/Arctic Avenger (Counter Strike)

as Main Antagonists in The Multiverse Wars (My Version)

Larry King (Phoenix Connexion)

as Main Antagonists in The Multiverse Wars (My Version)

Jacob Vince

as Main Antagonists in The Multiverse Wars (My Version)

Liquid Ocelot

as Main Antagonists in The Multiverse Wars (My Version)

Sephiroth

as Main Antagonists in The Multiverse Wars (My Version)

Starscream

as Main Antagonists in The Multiverse Wars (My Version)

Megatron

as Main Antagonists in The Multiverse Wars (My Version)

Tricky The Clown (Madness Combat)

as Main Antagonists in The Multiverse Wars (My Version)