Sledge is an intergalactic bounty hunter with thoughts of grandeur, who prides himself on capturing monsters (which he sends to fight the Rangers) and collecting the bounty on their head, as well as collecting asteroids. He is rather ill-tempered to his subordinates, though he does show a softer side to his fiance Poisandra. He plans to capture the Energems and gain ultimate power for himself. During pre-historic Earth, Keeper set a trap, setting his ship away from Earth and his asteroids caused the extinction of the dinosaurs.
Fury is the ill-tempered and irritable general to Sledge, who wields a Seven-Branched Sword that can harness lightning. After arriving on Earth, Fury is sent down to the planet to capture the Energems from Keeper. But Fury falls for a trap set by Keeper that crippled Sledge's ship. Though assumed to have been caught in the asteroid debris, Fury survived and became a reoccurring nemesis to Keeper for millennia. Fury later appears as a sketch in the notes of Tyler's father, implying he might be responsible for his disappearance.
Wrench is another of Sledge's generals who has a whiny personality if he is badly hurt. Though he serves as the ship's technician, Wrench can use a battle axe in a fight. Wrench was also the one who created Curio for Poisandra.
Poisandra is Sledge's heart-themed fiance and her own agenda is to get married to Sledge. However, he constantly puts their marriage plans on hold due to his immense greed. Poisandra has musical-themed attacks.
Curio is a doll-like companion of Poisandra that Wrench created out of spare monster parts as an early wedding present while doubling as a means to keep Poisandra at ease while Sledge focuses on retrieving the Energems.
The Vivix are the foot soldiers of Sledge's group. The Vivix can combine into large monstrous creatures called Vivizords where this form enables them to fight the Dino Zords. A random Vivix would be used to operate the Magnabeam.
The Vivix can combine into large monstrous creatures called Vivizords where this form enables them to fight the Dino Zords.