Superhero Wiki
Grune the Destroyer


Real Name
First Appearance
Thundercats, "The Ghost Warrior"
Tobin Wolf
Team Affiliations
The ThunderCats [formerly]
Base of Operations
Third Earth
No information
Skills and Abilities
Skilled Fighter
Battle Club

Grune was a male Thunderian in the 1985 version of the Thundercats television series who later turned to evil.

Grune was voiced by Bob McFadden.


A would-be conqueror of the world of Thunderia, Grune attempted to usurp the throne only to be defeated and exiled by the Thundercat Jaga.  Years later, Grune died but returned as a spirit to wreak vengeance on the Thundercats.


As a young man he was a Thundercat, with all the enhanced skills that go with that title. His Great-Grandfather once served as Lord of the Thundercats. Grune was at one time a good friend of Jaga, and the two fought side by side.

Unfortunately Grune had ambition and a lust for power that corrupted his heart and turned him into a force for evil. He came to view the Thunderian populace as being unworthy of the services of the Thundercats, and became determined to rule them as a God.

Grune and his forces attempted a military coup, however they were met by Jaga. The two former friends fought for hours. Eventually the former Thundercat was defeated. As punishment he was exiled from Thundera in a crystal vessel.

The crystal vessel eventually made its way to Third Earth. Grune proceeded to terrorize the natives, who named him Grune the Destroyer. Eventually Grune died and became a spirit.

Upon discovering the Thundercats living on Third Earth, he became their most lethal enemy – an ethereal, ghostly force who cannot be harmed by physical assault. Grune attacked the Thundercats with but one goal in mind: vengeance, against the Thunderian race in general and in particular his old friend, now an ancient enemy, the spirit form of Jaga the Wise.