Jackalman is a member of the Jackalmen and also serves as their leader. Like the rest of his kind, this humanoid Golden jackal hails from the planet Plun-Darr. His body is a dark orange in color, and he has tufts of fur covering his shoulders Jackalman ages are 13-16 years old.
Shortly after arriving Jackalman and the other Mutants were forced by Mumm-Ra to ally with him to defeat the ThunderCats and help Mumm-Ra claim the Sword of Omens for himself.
His first appearance in the episode was in "Exodus" as he helped Slithe loot the Royal Flagship while searching for the Eye of Thundera.
Jackalman was noted for being something disinterested in doing things because he's younger, Whenever Slithe proposed an attack, Jackalman could be counted on to immediately question if it was wise. Jackalman was a cautious Mutant who had no problem staying behind if he thought a plan was too risky. Normally a loyal henchman, Jackalman had no problems betraying the other Mutants or going rogue if he thought a course of action would increase his power. Additionally, Jackalman was noted for having a somewhat snide sense of humor, different compared to others.