He gave me life. Life you stole from me. And now you will repay it with your own!
~ Zeltrax revealing his hatred towards Tommy Oliver.

Zeltrax (real name: Terrance "Smitty" Smith) is a cyborg who acts as a general for Mesogog and a supporting antagonist from Power Rangers: Dino Thunder. Zeltrax was one of the two archenemies of Tommy Oliver, the other being Goldar.

He was voiced by James Gaylyn.


Terrance Smith

Zeltrax as Terrance "Smithy" Smith.

Zeltrax was once the human, Terrance "Smitty" Smith, was once partners with Tommy Oliver and Anton Mercer.

Smitty and Tommy were both up for a job at Mercer Industries, but Tommy got it instead of him. Later on, as Smitty was doing an experiment in another lab when an accident resulted in an explosion that caused terrible damage to his body.

Taking what remained of him, Mesogog placed it in a cyborg armor, transforming him into Zeltrax, a cybernetic general. He became completely intent on revenge on Tommy Oliver, blaming him for what happened to him and lead Mesogog's forces in their attacks on Reefside.  

During an attempt to make himself stronger with the Geno-Randomizer, Zeltrax accidentally created a "son" called Goldenrod, who he sent to destroy Tommy and the Power Rangers, only for him to be destroyed, increasing his strong hate for the rangers. Later when the White Dino Ranger joined Mesogog's team, Zeltrax wnated to get rid of him and used the Copyotter monster to create a copy of his Drago Sword. 

He proceeded to trash Mesogog's lab and left the sword at the scene to frame the White Ranger, but this only made things harder for his master, after the White Ranger escaped Mesogog's life draining machine and joined the other Dino Rangers. Zeltrax made up for this by creating a White Ranger Clone completely evil with no trace of Trent in him and the White Terrosaurus monster, but they were defeated and the monster destroyed. Some time after this, the cyborg was almost destroyed by one of his master's plans and he turned on the dinosaur-hybrid, going out on his own.


Zeltrax in his super form.

During this time, Zeltrax was approached by Emperor Gruumm, who traveled to the past so that he wouldn't have to deal with the S.P.D. Power Rangers. The cyborg reluctantly agreed to join forces with him and lead a combined army of Tyrannodrones and Krybots to take on the Power Rangers, only to be defeated again.

Some time after this, Zeltrax became aware of the powerful waters beneath a tree at Reefside High and used some of it to enter a super-powered form. He proved almost unstoppable, but was defeated by the Red Ranger's Triassic Battlizer.

Later, Zeltrax built a zord for himself, Zelzord, and after Mesogog was defeated by the Rangers, he unleashed it upon Reefside. However the rangers used the self-destruct of their Dinozords to destroy the Zelzord and Tommy and Kira Ford destroyed Zeltrax once and for all.

Powers and Abilities

Zeltrax is a powerful warrior, possessing superhuman abilities thanks to his cyborg body and can fire energy blasts and teleport. In combat, he wields a sword or an axe and a shield and in his super from, he became even more powerful.


  • Dr. Thomas "Tommy" Oliver
  • Sam
  • Bridge Carson
  • Conner McKnight
  • Trent Mercer
  • Elizabeth "Z" Delgado
  • Jack Landors
  • Anubis "Doggie" Cruger
  • Ethan James
  • Kira Ford
  • Schuyler "Sky" Tate
  • Sydney "Syd" Drew



The Zelzord

  • Zeltrax is the only regularly used Dino Thunder villain to have a counterpart in the Super Sentai series that Dino Thunder was based on, Bakuryuu Sentai Abaranger. His counterpart was Darkness Messenger Geildon, Destruction Messenger Jannu, and Asuka and the reason his counterpart was three people was because his counterpart was a Cursed Armor that went from person to person whenever someone defeated the previous holder in battle which also drove the user insane. His Super Form's Sentai counterpart is a recreation of the cursed armor created by the main villain Dezumozorlya to serve as an avatar form for him.


           Power rangers 2018 logo Villains

Mighty Morphin
Blue Globbor | Finster | Ghost of Darkness | Goldar | Hydro Hog | Katherine Hillard | Lokar | Lord Zedd | Machine Empire | Master Vile | Pineoctopus | Putty Patrollers | Rita Repulsa | Rito Revolto | Scorpina | Squatt and Baboo | Tenga Warriors | Tom Oliver | Wizard of Deception | Z Putty Patrollers

Archerina | King Mondo | Klank & Orbus | Louie Kaboom | Machine Empire | Prince Gasket | Prince Sprocket | Queen Machina

Chromites | Divatox | Elgar | General Havoc | Goldgoyle | Maligore | Porto | Rygog

In Space
Astronema | Dark Specter | Darkonda | Ecliptor | Psycho Rangers

Lost Galaxy
Captain Mutiny | Deviot | Furio | Kegler | Scorpius | Stingwingers | Trakeena | Treacheron

Lightspeed Rescue
Diabolico | Jinxer | Loki | Prince Olympius | Queen Bansheera | Triskull | Vypra | Ryan Mitchell

Time Force
Cyclobots | Doomtron | Frax | Gluto | Nadira | Ransik | Venomark

Wild Force
Ancient Master Org | General Venjix | Jindrax | Mandilok | Master Org | Mut-Orgs | Nayzor | Onikage | Putrids | Retinax | Toxica | Viktor Adler | Zen-Aku

Ninja Storm
Choobo | Goldwinger | Lothor | Marah & Kapri | Motodrone | Shimazu | Vexacus | Zurgane

Dino Thunder
Elsa | Fossilador | Mesogog | White Dino Ranger Clone | Zeltrax

A-Squad Power Rangers | Broodwing | Emperor Gruumm | Krybots | Mirloc | Morgana | Omni | Wootox

Mystic Force
Barbarian Beasts | Imperious | Koragg | Morticon | Necrolai | Octomus the Master | The Ten Terrors (Black Lance | Itassis | Magma | Megahorn | Oculous | Sculpin | Serpentina) | Vida Rocca

Operation Overdrive
Fearcats (Benglo) | Flurious | Kamdor | Moltor | Thrax

Jungle Fury
Camille | Dai Shi | Five Fingers of Poison | Grizzaka | Jarrod

Kilobyte | Tenaya 7 | Venjix Computer Network

Arachnitor | Dayu | General Gut | Master Xandred | Moogers | Professor Cog | Robtish | Sergeant Tread | Serrator

Admiral Malkor | Bigs | Bluefur | Creepox | Emperor Mavro | Metal Alice | Messenger | Princess Levira | Vrak

Dino Charge
Curio | Fury | Heckyl/Snide | Lord Arcanon | Poisandra | Singe | Sledge | Spikeballs | Wrench | Vivix

Ninja Steel
Brax | Drillion | Madame Odius | Ripcon | Tynamon | Wolvermean

Beast Morphers
Blaze | Evox | Roxy | Scrozzle | Vargoyle

Ivan Ooze | Ecto-Morphicons | Mordant | Rita Repulsa | Goldar

Lord Drakkon

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