Grum

Grum is a minor antagonist in the 6 part Sonic The Comic story, Last of the Rocket Knights. He is a soldier in the Gedol Empire and a soldier in Paerie's squadron.

History
Grum was one of the soldiers tasked by King Gedol to keep the opossums in check after the lizard tyrant brainwashed them. When Sparkster returned, Grum attacked the rocket knight. Despite Paerie's orders not to do anything to damage Sparkster's armor, Grum attempted to vaporize Sparkster with his E26 mecha's flamethrower.

Sparkster managed to avoid Grum's attack and stabbed his sword into Grum's mecha, causing it to explode. Grum was likely killed in the explosion.