Icon-dt.pngThis article is about a/an villain in Power Rangers Dino Thunder.

"Does the name 'Terrance Smith' mean anything to you? I was on the verge of a breakthrough when it all went wrong. Mesogog found me and put me back together again, he's a genius with cybernetic reconstruction. He gave me life, life you stole from me, and now you will repay it with yours."
―Zeltrax explaining his origins to Tommy.[src]

"I cannot bear to tell my master such dismal news."
―Zeltrax's first words after Elsa asked which of the two of them should tell Mesogog of Kira's escape. He soon tortures them both anyway.[src]

"I'll never stop!"
―Zeltrax after Tommy gave him the chance to stop battling during the battle inside the second Aerial Assault Craft and his final words before his presumed death.[src]

"Too late. You're all too late! I'm back and now all of my enemies will pay!"
―Zeltrax revealing his survival to the Rangers and Elsa.[src]

"You didn't really think I'd go down so easily? You're going down, Tommy!"
―Zeltrax after he, Tommy and Kira escaped the Zelzord and his final words before his true death.[src]

Terrance "Smitty" Smith, also known as Zeltrax, was a scientist who, after getting caught in a terrible accident, was turned into a ruthless ammonite-themed cyborg that served the humanoid dinosaur terrorist Mesogog for a time while also seeking revenge against Dr. Tommy Oliver.

Zeltrax was the tertiary antagonist of Power Rangers Dino Thunder.


Early Life

Terrance "Smitty" Smith right before his fatal accident.

Terrance Smith, often called "Smitty", was a partner of Tommy Oliver and Anton Mercer, the three once took a picture during their first dig. At some point, Tommy and Smitty were up for the same job at Anton Mercer Industries, but Mercer chose Tommy over Smitty. Smitty went to work for a different company, where, during an explosion at his lab, he was grievously injured. The actual mixture he was making which caused the explosion is unknown but it is likely some kind of specialist explosive given that dropping the vial caused the detonation. Mesogog found his ruined body and rebuilt him with cybernetic technology into a black armored cyborg that would be known as Zeltrax. To the outside world and Tommy, Terrance Smith disappeared the day of the accident. Tvicon.png TV STORY-Bully for Ethan

Working for Mesogog

Zeltrax encounters Tommy Oliver years later.

A few years later, Zeltrax and Mesogog reemerged along with their new lackey Elsa after three high-school students recovered the Dino Gems, when Mesogog captured Kira Ford, Zeltrax tried to keep her from escaping but failed. He would later attacked the students and their teacher, who happened to be Tommy Oliver, with an army of Tyrannodrones, Zeltrax fought Tommy before leaving to tell Mesogog that his old partner now turned rival is back.

Zeltrax would later use his Aerial Assault Craft to attack Reefside while the Biozords were let loose, he would then teleport in front of the three students that bonded with the Gems right before they morphed for the first time into the Dino Rangers, despite beating them at first, Zeltrax couldn't handle a blast from their Z-Rex Blaster and had to go pilot his Aerial Assault Craft in order to destroy the city, but his ship was eventually destroyed by the Thundersaurus Megazord, he was then punished by Mesogog for his failure. Tvicon.png TV STORY-Day of the Dino

Creating his son

Using the technique of divide and conquer, Zeltrax attacks the other Dino Rangers with an army of Tyrannodrones while Mesogog sends a monster after Ethan James, though in both situations they are defeated. Tvicon.png TV STORY-Game On

Zeltrax and his son Goldenrod.

Zeltrax eventually decides to give himself a power boost by using the Geno-Randomizer on himself, but instead of upgrading Zeltrax, the machine creates a super-powered clone named Goldenrod that calls Zeltrax his father. Zeltrax fabricates a lie about a "family destiny" in order to send his "son" to destroy Tommy Oliver. Goldenrod eventually goes after Tommy, but when the Dino Rangers arrive Zeltrax appears to rescue Goldenrod as the odds were against them.

Zeltrax is defeated by Tommy again.

After using the Geno-Randomizer to make his son stronger, Zeltrax and Goldenrod attack Tommy, Ethan and Trent the next day. When all four Dino Rangers morph, Goldenrod and some Tyrannodrones commanded by Zeltrax attack them while he takes on Tommy Oliver himself. His son eventually grows giant and attacks the city as the Thundersaurus Megazord is formed to fight him. Zeltrax is then beaten by Tommy Oliver while his son beats the Megazord, unfortunately, Tommy ends up destroying his son with the power of his Brachio Staff. While Zeltrax watches this he calls Goldenrod his only family and vows vengeance on Tommy once again. Tvicon.png TV STORY-Golden Boy

While Elsa made a Dimetrozord hatch out of a Dino Egg, Zeltrax has another confrontation with Dr. Oliver in the forest but he's teleported back by Mesogog who thinks he should leave his "petty jealousness" out the next time he fights. Tvicon.png TV STORY-Beneath the Surface

Betraying his master

After a second near fatal experience, because of his master's plans, Zeltrax mutinied against Mesogog and went out on his own. Zeltrax later gained a super powered form through the special underground spring that flowed beneath the Tree of Life. Tvicon.png TV STORY-The Passion of Connor

S.P.D. Encounter

Zeltrax meets Emperor Gruumm.

Zeltrax and his army of Tyrannodrones later encounter the Dino Rangers, but he's later teleported by a beam to a ship called the Terror and meets Emperor Gruumm, who came from the year 2025 to ensure his conquer over planet Earth won't be interrupted. Claiming that he'll feel his wrath, Zeltrax attacks Gruumm but his power is no match for the Emperor who has a proposal for him, Gruumm says that Zeltrax and his troops could help him beat the Power Rangers, with Zeltrax responding that him that it would be his pleasure.

Back on earth, Zeltrax finds Tommy Oliver and they fight once again, he was about to beat him until some SPD Rangers (who traveled from the future too to stop Gruumm) arrived and saved him. With all twelve Rangers surrounded, Zeltrax and his allies attacked them, with him taking on both Tommy Oliver and Commander Cruger, though he's easily beaten before leaving. Tvicon.png TV STORY-Wormhole


End of Zeltrax.jpg

In the final episode of Dino Thunder, Zeltrax kidnaps Elsa (who was reverted to a normal human being after her powers were sacrificed by Mesogog to power his trans-mutation cannon) and invades the Rangers' base. Then, with the aid of the Triptoids, Zeltrax built his giant Zelzord, where Elsa is held hostage.

Zeltrax uses his Zelzord to demolish Reefside, but Tommy battles Zeltrax along with Kira who rescues Elsa just in time before the Zelzord is finally obliterated by the self-destruction of the Rangers' Dinozords. Elsa is saved, and Zeltrax was eventually destroyed by Tommy and Kira.



At first Terrance "Smitty" Smith was a kind, harmless and polite man, who was good friend of Tommy and Anton. But after the accident, when he was rebuilt by Mesogog, he became a brutal, cold and ruthless cyborg. He was obsessed with hatred toward Tommy and wanted to destroy the Dino Rangers at any cost. Zeltrax was an arrogant, stubborn and confident warrior with contempt to his enemies. However, despite his negative side, Zeltrax was a noble, honorable and honest soldier, not lacking honor and dignity and could show pity to his opponents, as well as respect and fair play. He also felt romantic affections towards Elsa. Zeltrax was faithful to Mesogog and loved him as a father, but then he betrayed him and lost his loyalty to him following a near fatal experience that almost killed him. When Tommy discovered that Zeltrax was Smitty, he felt pity for his old friend and thought he still could save him, but Zeltrax didn't believe in it. However, Zeltrax still possessed a soul. Also Zeltrax genuinely loved his son Goldenrod and was extremely furious when he perished.

Powers and abilities

  • Strength: When Zeltrax tied Ethan up with his tractor beam, he was strong enough to slam him hard against a wall with a swipe of his hand and when fighting the newly morphed Tommy, Zeltrax was able to knock back the new Ranger with a single kick.
  • Durability: Zeltrax was able to be blasted by the Z-Rex Blaster, as well as explode from the attack, and be unfazed. When the Thundersaurus Megazord destroyed his Aerial Assault Craft, his cockpit exploded many times in his face yet he was unfazed.
  • Resilience: After being blasted by the Z-Rex Blaster, Zeltrax was able to get straight back up.
  • Tyrannodrones Summoning: Zeltrax is able to summon Tyrannodrones to aid him in battle.
    • Triptoids Summoning: Alternatively, Zeltrax is also able to summon Triptroids to aid him in battle.
  • Tractor Beam: Zeltrax can flash his "eyes" and fire a purple tractor beam from his hand. This was powerful enough to let him lift up Ethan and slam him against a wall several times and also cause him visible pain on contact.
  • Master Swordsman: Zeltrax is an absolute master of the sword. He can easily overpower the core Dino Rangers but is no match for Tommy or Trent or Conner in the Triassic Battilizer.
  • Master Hand to Hand Combatant: Zeltrax is amazing at hand to hand combat, able to easily overpower the three main Dino Rangers whilst being on par with Tommy although he was outmatched by Trent.
  • Extraordinary Leaper: Zeltrax is able to leap at incredible distances.
  • Lightning Beams: Zeltrax is able to fire pink, blue, or cyan lightning beams from his hands.
  • Lasers: Zeltrax is also able to fire purple lasers from his hands.
  • Helmet Blasts: Zeltrax can fire purple or red energy blasts from either side of his head which were powerful enough to take Conner, Ethan, and Kira down in one hit.
  • Teleportation: Zeltrax can summon a green portal or a flash of red lightning above him and go into it to teleport himself and sometimes others next to him to any location at will.
  • Transformation: After tapping into the underground spring beneath the Tree of Life, Zeltrax was able to change into his super form. He can even do this on his own.

Super Form

  • Strength: In this form, Zeltrax is far stronger than he was before. He was able to hold Krista in one arm effortlessly while using the other to climb up a cliff.
  • Durability: Zeltrax is also more durable in this form. When he was defeated by Connor in his Triassic Battlizer mode and exploded, he survived his attack and only reverted to his normal form.
  • Lightning Cloud: Zeltrax can conjure up a green storm cloud that will send white lightning bolts raining down at his opponents.
  • Lasers: Zeltrax can fire purple lasers from his hands like before, but they are stronger.
  • Teleportation: Zeltrax retains his ability to teleport himself and sometimes others next to him like before in his normal form.
  • Extraordinary Leaper: Zeltrax also retains his ability to leap at incredible distances.
  • Climbing: Zeltrax can climb up anything effortlessly, as seen when he was climbing up a cliff with the captured Krista.
  • Lightning Vision: Zeltrax can fire light green-colored lightning blasts from his eyes.
  • Mirage Creation: Zeltrax was able to create a mirage of himself to avoid getting destroyed by Connor's Battle Blast attack.
  • Darkness Spreading: While he was in his Zord, Zeltrax released a massive spread of darkness from himself that darkened the sky.


Zeltrax's gladius in its sheath

Zeltrax's double-bladed spear.

  • Gladius: Zeltrax has a retractable turquoise-bladed gladius-like sword that is normally rested on a sheath located below his left knee.
    • Lightning Blasts: Zeltrax can fire blue or turquoise lightning from his sword which were powerful enough to wipe out Tommy whilst he was fighting alongside Donkeyvac.
    • Lightning Ground Wave: Zeltrax can charge up his gladius with turquoise lightning and slam it down to release lightning waves of the same color that can travel across the ground to be unleashed at his enemies.
  • Shield: Zeltrax carries an indestructible shield to defend him whilst he is fighting his enemies.
  • Aerial Assault Craft: Zeltrax used this ship to launch his first attack on Reefside. It was destroyed by the Thundersaurus Megazord.
  • Axe: On one occasion, Zeltrax has used a black-colored axe in his battle, but starting from Back in Black, he wielded the turquoise-bladed gladius instead.
  • The Geno-Randomizer: Zeltrax can sometimes use Mesogog's Geno-Randomizer to create monsters of his own.
  • Copyotter's Arm: Zeltrax used one of Copyotter's arms to create the evil White Ranger clone.
  • Monster Creation Blaster: Zeltrax wielded a thorny blaster capable of firing a purple energy stream that turned the Tree of Life into a tree monster named Deadwood.

Super Form

  • Gladius: Zeltrax retains his gladius and sheath below his left knee like before in his normal form, but he hardly uses it.
  • Double-Bladed Spear: As Super Zeltrax, he opted to use a double-bladed spear as his weapon.
    • Ground Implosion: Super Zeltrax can energize his spear with light green energy and slam it down to create an implosion on the ground that was strong enough to send rocks falling down.
    • Energy Cuts: Zeltrax can fire lime green energy cuts from his spear.
  • Tree of Life's Branch: Zeltrax stole a branch from the Tree of Life, which he plunged into the sap underneath to gain more power.

Behind the Scenes



Zeltrax appearing from a red Invisiportal, via Sentai footage.


Main article: List of Zeltrax's appearances

See Also


Power nav icon.png Power Rangers Dino Thunder Icon-dt.png
Conner McKnight - Ethan James - Kira Ford - Tommy Oliver - Trent Fernandez-Mercer
Dino Gems - Dino Morpher - Brachio Morpher - Drago Morpher - Triassic Morpher - Triassic Battlizer Morpher - Thundermax Saber - Tyranno Staff - Tricera Shield - Ptera Grips - Brachio Staff - Drago Sword - Z-Rex Blaster - Super Dino Mode - Shield of Triumph - Triassic Battlizer - Raptor Riders - Raptor Cycles - Dino ATVs - Hovercraft Cycle - Triceramax Command Center Truck
Hayley Ziktor - Ninja Rangers - Sensei Kanoi Watanabe - S.P.D. Rangers - Cassidy Cornell - Devin Del Valle - Anton Mercer
Zords and Megazords
Tyrannozord - Tricerazord - Pterazord - Brachiozord - Dragozord - Stegozord - Cephalazord - Dimetrozord - Parasaurzord - Ankylozord - Mezodon Rover
Thundersaurus Megazord - DinoStegazord - Mezodon Megazord - Triceramax Megazord - Valkasaurus Megazord
Mesogog - Elsa - Zeltrax - White Ranger Clone - Tyrannodrones - Triptoids
Evil Space Ninjas: Lothor - Izzy & Pupperazi - Zurgane - Kelzaks
Aerial Assault Craft - Birdbrain - Pollinator - Donkeyvac - Demagnetron - Dysotron - Goldenrod - Scorpex - Megalador - Creature - Angor - Rojobot - Insectolite - Fossilador - Termitetron - Ka-Ching - Mad Mackerel - Copyotter - Other World Monster - White Terrorsaurus -Terra Assault Craft - Jupitor - Tutenhawken - Thornox - Deadwood - Horn-Rimmed Monster - Jade Gladiator - Skortch - Nosey the Clown - Squidrose - Croco D'Vile - Rumba Monkey - Rude Elf - Fridgia - Ruby Dragon - Ugly Monster
Zords: Replicantzord - Zelzord