Triskull is a Demon warrior who swears allegiance to Trakeena. He is the leader of the ghouls, foot soldiers Trakeena uses with the destruction of her Sting Wingers. He pretends to aid Olympius in collecting energy for Queen Bansheera, but is actually collecting it so Trakeena can return to her insectoid form. He attempts to stop the Rangers from entering the building where the energy is kept, and is destroyed by the Red Galaxy and Lightspeed Rangers.
- Unlike most villains and monsters, Triskull did not explode after being killed by the Rangers.