Gorrath

Warmaster Gorrath is the main antagonist of Megas XLR - although he would become less prominent of a threat later in the series (even a reluctant "ally" at times): he is noted for his intense hatred of Coop and humans in general, who he once sought to conquer.

Gorrath is also the war-master of the alien race known as the Glorft and is not against using his army to hunt down those he truly despises. He also has a commander as his second in command.

History
In the future, Gorrath and his army fought an army of humans and were winning the battle against them. The human forces sent a group to travel back in time to stop the Glorfts from getting Megas. But, Gorrath and his forces followed them as well. However, they traveled too far into the past and found Megas was redesigned and founded by Coop. Gorrath tries to steal Megas and conquer but is defeated by Coop. Gorrath told his commander to travel home and get reinforcements but are trapped due to needing Megas to power the portal.

As a result, Gorrath tried to steal Megas. He found Megas' signal when Coop entered it into car show and went to Earth with his troops. Coop managed to defeat Gorrath again.

After being defeated by Coop two times, his men created Mecha Megas, an evil robotic duplicate of Megas. Gorrath decides to pilot and face Coop himself. Coop didn't have his control car so he had to face Gorrath with piloting Megas manually. Coop managed to get his control car back and defeat Gorrath.

Gorrath had also tried to get Megas multiple times or even destroy it.