Mantenna is a minor antagonist in the television series He-Man: Masters of the Universe. One of Hordak's chief lieutenants, Mantenna is a anthropomorphic monster with four legs and pop-out antenna eyes. He is a bit player in the second Disney vs. Non-Disney Villains War.
Disney Vs Non-Disney Villains War - Part Two
Mantenna accompanies Hordak on his way to Avalon to meet with the fairy king Oberon. When Oberon is less cooperative to talk about the person who imprisoned Hordak in the first place, Hordak is forced to fight him. Ultimately, Oberon reveals the real perpetrator: Maleficent, Mistress of All Evil. The Evil Horde decides to lead a full-out assault on the Forbidden Mountain, a matter which one of his henchmen was worried only to be silenced. Nonetheless, Hordak leads the assault with his Hordes and allies. Sadly for him, Maleficent casts him out of the mountain to his demise.