Megatron

Megatron was a Decepticon and a main character in the scrumblebee comic. He was the leader of the Decepticons, and a tyrannical warlord. His philosophy was that Cybertron should have peace through tyranny.  Beast Planet Arc 

After Fortress Maximus defeats Bruticus, Megatron and Starscream use the ray-gun to immobilize Fortress Maximus. After the battle, he learns that Springer is leading a team to the Beast Planet, and he orders Soundwave to notify Shockwave.

 Shockwave's Revenge Arc 

When Springer and his team arrive on Cybertron, Megatron, Starscream, and Darkwind are fighting Optimus Prime and his troops. After Shockwave joins forces with Sixshot and Liokaiser, they go back to the Decepticon base on Cybertron. Shockwave then stages a mutiny, and kills Megatron. Soundwave then takes Megatron's body to his hideout, where he remains for the rest of the arc.

The Galvatron Crisis Arc

After the Autobots battled Shockwave and his troops, Soundwave, his minions, Starscream, and Scourge used Perceptor's reformatting technology, combined with Dark Energon, to revive Megatron as Galvatron.