This article is about a/an lead villain from the episode Once A Ranger in Power Rangers Operation Overdrive.
"I want to be part of the end of the Power Rangers!"

Thrax is the son of Rita Repulsa and Lord Zedd who appears in the episode "Once a Ranger". It seems Thrax inherited most of his appearance from his father, due to his physical appearance and his Z-Staff. Also, his powers seem to be similar to those of his father. His mother's appearance isn't apparent, except that he has a part humanoid face (similar to Grimlord from VR Troopers), and torn cloth-like orange ornaments wrapped around his horns. One similarity to his mother is that he too was imprisoned in a space dumpster. His jawbone resembles that of his uncle, Rito Revolto and has a skeletal spinal column, a combination resembling his father and uncle. His shoulder pads and chest armor are similar to Zeltrax from Power Rangers Dino Thunder.

Character History

Early life

The Sentinel Knight imprisoned Thrax into a space dumpster on the Moon (which may have happened between In Space and Operation Overdrive, or at least prior to the finale of the former). But one day Thrax was strong enough to break the dumpster and free himself.

He is the son of Rita Repulsa and Lord Zedd. He inherited his father's staff, (but it is unknown how he got his father's staff as it was supposed to be destroyed during "Countdown to Destruction" when his father and mother turned good) most of his physical appearance and similar powers. He was also after the Corona Aurora, he was imprisoned by the Sentinel Knight in a space dumpster on the moon just like his mother. As the Knight grew weaker, he grew stronger and escaped from the dumpster. Thrax was angry at his parents for becoming good and wanted to restore their evil legacy.

It is unknown when Thrax was born, though it is possible that he was conceived during the events of Zeo and was born during Turbo, explaining Rita and Zedd's absence from that season. Alternate theories have Thrax being born from an illicit affair between Rita and Zedd over ten thousand years ago, prior to Rita's imprisonment. Conjecture has Thrax aging quickly, perhaps due to a genetic quirk of his lineage in order to accommodate his being an adult during Operation Overdrive.

It is likewise unclear when Thrax was sealed, given that he was done so by an embodied Sentinel Knight, who was only active in such a form thousands of years ago, but was likely only born within a decade of the episode. That Thrax was either not involved in the events of "Countdown to Destruction" or had already been sealed by the time Zordon's wave was released seems logical.

Recruiting the Villains


Thrax arrives.

Thrax PROO villains

Thrax and his Evil Alliance

He recruits the other villains such as Flurious, Moltor, Kamdor, Miratrix, and the Fearcats, Mig and Benglo,to defeat the Overdrive Rangers. Though each faction was reluctant at first, they joined together and managed to sever the Rangers' link to the Morphing Grid.


When the Sentinel Knight restored the power of five veteran Rangers and made them a team, Thrax sought a mystical sword called Excelsior to destroy the knight. However, because of his evil nature, Thrax was unable to claim the sword. He left in a rampage and proved to be a strong fighter overcoming the Defender Vest. In his final hour, he led the four factions into battle with the veteran and Overdrive Rangers. He battled Adam and nearly defeated him. However, he was ultimately destroyed by the reborn Sentinel Knight using the Power Kick Attack. The other villains retreated and broke their alliance to continue their rivalry.


to be added

Powers and Abilities

  • Create Monster
  • Teleportation
  • Lightning


  • Z Staff

Family Tree

Daimaou & Master VilleMaster Vile
MMPR RitoRito  Rita RepulsaRitaLord zedd
  OO ThraxThrax


Behind the Scenes



  • Thrax's communicator resembled the chrome on Lord Zedd's chest.
  • Unlike the other villain factions and even his own parents and grandfather, Thrax is the only one who managed to have a long term victory over the Rangers.
  • Due to his battle with the Sentinel Knight, Thrax must be at least thousands of years old. However, if his parents were Rita and Zedd, it is unknown how he could have faced the Sentinel Knight when his parents were married in 1995. Though most fans agree that he must have been conceived during Power Rangers Zeo and born during Power Rangers Turbo and that his age was accelerated due to his extraterrestrial/magical lineage. It is also possible-especially given the penchant his father and grandfather displayed for warping time-that Thrax may have traveled back in time and ended up confronting Sentinel Knight.
  • Another theory is that Thrax may have been born before Rita and Zedd even got married, or before the events of Power Rangers. However this is most likely false as an episode of Mighty Morphin' Power Rangers also mentioned that Zedd wanted to have a son. Then in "Return of the Green Ranger", he first mentions the desire of having a child while dancing with Rita, much to her disgust (at the time).
  • During the first episode of "Once A Ranger", Thrax says a line similar to Rita's first line of the first episode of the Mighty Morphin' Power Rangers series; Rita's original line was "After ten thousand years, I'm free!" whereas Thrax's line was "After all these years, I'm free!".
  • Some elements of Thrax's body are from villains in other seasons as well as other shows. His shoulder pads and chest armor are from Zeltrax's armor from Dino Thunder. His jawbone is made from his Uncle Rito from Mighty Morphin' Power Rangers. He has a skinless chest similar to his father Lord Zedd and the left side of his looks very much like Grimlord's from VR Troopers.
  • He is the only member of his family that never appeared in Mighy Morphin Power Rangers Season 3.
  • Also on the bottom right of his face looks like a piece of his father's face guard from his helmet.
  • One question would also wonder where Thrax got the Z staff since Lord Zedd was holding it in his hand before Zordon's wave touched him, unless he had created his own.
  • Like Zedd, he is also a villain who didn't have a Sentai counterpart, unless one could consider Kai; son of Witch Bandora (a counterpart of Rita Repulsa).


See Also