XII. Villains


Dino Thunder Logo

Mesogog's Island Fortress Mesogog's Island Fortress Interior

Mesogog’s Army

Mesogog Mesomonster

Played By: Latham Gaines
Mesogog came to be when Anton Mercer tested out an experiment on himself. From that moment on, Mesogog became an alter ego to Anton who desired to transform the planet back to the era of the dinosaurs. For that purpose, he needed the Dino Gems to complete his task. He eventually separates from Anton and shortly after enacts his final plan which is to use a beam powered by the Dino Gems to transform every human on earth into a dinosaur hybrid. His plans fail however and after this he mutates into a more dinosaur-like form to battle the Dino Rangers himself. Only when the Dino Rangers use all their Dino Gem energies are they able to destroy Mesogog.

Zeltrax Super Zeltrax

Voiced By: James Gaylyn
Zeltrax was once known as Terrance Smith who was severely injured during an experiment. He was found by Mesogog and transformed into Zeltrax to serve as a general in his army. Zeltrax is shown to have a fierce rivalry with Tommy due to him losing out on a job at Mercer Industries which caused him to work at the company where his accident occurred. Zeltrax was presumed to be destroyed for a short time after Tommy caused his Aerial Assault Craft to blow up with him in it. His first goal back was to use the Tree of Life and use its energy to receive an unstoppable form. He succeeds in this however, he is severely injured by Conner’s Triassic Battlizer. He later come back in the finale to kidnap a purified Elsa and uses her as a shield while his Zelzord attacks Reefside. He is destroyed by a combined attack from Kira & Tommy.

Elsa Short Hair Elsa Long Hair Principal Randall Purified Elsa

Played By: Miriama Smith
Elsa gains information on the Dino Rangers for Mesogog through her alias as the principal of Reefside High School up until she is caught by Tommy Oliver. Beyond that, Elsa serves as Mesogog’s second-in-command after Zeltrax is banished and attempts to please her master by coming up with multiple plans on how to defeat the rangers. After her secret identity of  being Principal Randall  is exposed, Mesogog deems Elsa to be useless to him and uses the energies he gave to her to power his beam. After being drained of her power, she is transformed into a normal human.

 Evil White Ranger Clone Super Dino Mode

Evil White Ranger Clone
Voiced By: Adam Gardiner
After Trent defects to the side of good, Zeltrax uses a weapon from one of his mutations to create the Evil White Ranger Clone, a soulless warrior with no trace of Trent Mercer in him. After a while, the Evil White Ranger Clone learns that two White Rangers can’t exist simultaneously and challenges Trent Mercer to a duel. He loses this duel however and is destroyed.


Created as an experiment by Anton Mercer and Tommy Oliver, the Tyrannodrones were altered by Mesogog to use as footsoldiers in his army.


Originally creatures from a video game, they were transported to the real world by one of Mesogog’s mutation and captured by Zeltrax for Mesogog to use as secondary footsoldiers. Zeltrax also used these as his primary footsoldiers after he was banished.

Space Ninjas


Played By: Grant McFarland
Lothor escaped the Abyss Of Evil and turned the Wind Rangers into his evil pawns. He teamed up with Mesogog to destroy the Dino Rangers but was turned on by Mesogog and shrunken into a container after his plan of attack failed.


Voiced By: Peter Rowley
Zurgane guarded the Samurai Amulet in the deeps of the Abyss Of Evil. When the Wind Rangers were freed from Lothor’s control, he co-lead the combined armies of Lothor and Mesogog and was destroyed by the combined efforts of the Black Dino Ranger and the Thunder Rangers.

Izzy Pupperazzi

Izzy & Pupperazzi
Voiced By: James Coleman
After escaping the Abyss Of Evil, Lothor brought with him these two silent warriors. They were both destroyed by the combined efforts of the Red Ninja Ranger & Red Dino Ranger.


The Kelzaks serve as footsoldiers in Lothor’s Army.