The champion of an alien gladiator show, he sets his sights on Earth in the hopes of stealing the Ninja Nexus Prism.
- Adaptation Personality Change: His Sentai counterpart is The Conqueror instead of a game show host.
- Ascended Extra: In a way; his counterpart Kibaoni spent most of the series as a disembodied voice we only heard saying the same phrase when creating the Monster of the Week. He only gets a body in the last arc, and even the final episodes are more about The Dragon Kyuemon's character development instead of putting Kibaoni in center stage. Traditional Big Bad duty is done by a different Dragon-in-Chief each arc similar to Magiranger/Mystic Force. On the other hand, Galvanax is out and about from the beginning, and holds the reins personally.
- Big Bad: Of the first season of the show.
- Deadly Game: His fights are to the death, the prize the opportunity to try to reach into the Prism and obtain the Ninja Power Stars.
- Disc-One Final Boss: He is killed off in the season finale of Ninja Steel, ultimately halfway through the series.
- Evil Cannot Comprehend Good: He was aware that only special people could pull the Power Stars out of the Prism, but it never occurred to him that it might be looking for moral qualities, not simply power or skill as a warrior. As a result, he spent 10 years trying to get random alien warriors to pull the Stars via Gladiator Games for nothing.
- Killed Off for Real: Taken out for good by the combined forces of the rangers in Galavanax Rises, with Madame Odius taking over from him in the next season.
- Orcus on His Throne: Subverted, in a way. When he first came to Earth he averted this, but now that he's back he mainly hangs out in his spaceship for fear of looking weak in front of his followers. However, he's more active in the planning phase of things than the main villains who were really bad about this.
- Slave to PR: Avoids directly confronting the entire Ranger team out of fear of being knocked down or made to seem weak in front of his followers.
- Wants a Prize for Basic Decency: Calls Brody ungrateful and acts like he did Brody a favor by "taking him in" (read: killing his father and enslaving him) as a child. Brody disagrees.
Galvanax's advisor, with a surprising amount of knowledge on both the Ninja Nexus Prism and the Earth.
- Adaptational Villainy: No last episode HeelFace Turn for her.
- The Chessmaster: In Super Ninja Steel, she hires the Galactic Ninjas to destroy the Rangers. However, her true plan is to let the Rangers defeat the Galactic Ninjas so she can steal their Ninja Medallions.
- Co-Dragons: Alongside Ripcon to Galvanax.
- Cunning Like a Fox: She's themed after a kitsune, and both Galvanx and Ripcon are suspicious about her intentions, which are proven to be correct as she has taken the Gold Ninja Star for herself.
- The Determinator: One good thing that can be said for her is that she never gives up. Even when she's clearly outmatched, she'll keep on fighting.
- Dragon Ascendant: Becomes this after Galvanax is defeated by the rangers, taking over his spot as Big Bad in Super Ninja Steel.Odius: The game's not over yet... not by a long shot!
- Dragon with an Agenda: She's clearly hiding back information from her boss considering she possessed the Gold Power Star for several episodes and didn't bother telling Galvanax. She still seems to be supportive of Galvanax's plans in general, but has her own secret plans to undermine both him and the rangers.
- Evil Genius: Appears to be much smarter than her boss and cohort and her plans tends to revolve around intelligence in comparison to them as well. She's also been keeping a secret lab within the ship where Galvanax's show is done.
- Humongous Mecha: Got one in the form of Foxatron after collecting the Galactic Ninja's medallions.
- Manipulative Bastard: Odius doesn't fight normally, preferring to plan around the field to get what she wants. She also tends to think long term, such as her plans to use Aiden's memories in a robot to find their base and steal the ninja steel. And even after that plan fails, she managed to trick Galvanax into sending Ripcon to his death.
- Nice Job Fixing It, Villain!: Due to trying use the Ninja Nexus Prism. She inadvertently recreated the Power Stars for the Rangers after they were destroyed in the first season, allowing them to regain their powers.
- One-Winged Angel: After merging with the Nexus Super Star in the finale.
- Really 700 Years Old: In the finale, she reveals that she's had her goal of raising an army and claiming the Ninja Nexus Prism's power for a thousand years.
- Rugged Scar: She ends up with one of these over her eye after her defeat in Foxatron at the hands of the Ninja Blaze Megazord.
- She's a Man in Japan: Her Sentai counterpart, Kyuemon Izayoi, is male (though voiced by a woman and was not known to be male for a long time).
- Team Killer: Is directly and indirectly responsible for Ripcon's and Galvanax's deaths respectively at the hands of the rangers and later kills Wolvermean herself after he fails to destroy the rangers.
- The Starscream: A rare successful one, as she uses the Ninja Steel-attracting magnet-beam to pull on the Ninja Steel powering up Galvanax, restricting his movement and enabling the Rangers to finish him, leaving her in charge.
- This Cannot Be!: Invokes this in "Reaching the Nexus" when the Rangers succeed in overpowering her powered-up form.
- Unrelated in the Adaptation: Her Sentai counterpart was the son of Galvanax's counterpart and older half-brother of Brax's counterpart. Here, none of them are related at all.
- Villain Ball: In "Outfoxed", she literally stabs Wolvermean in the back while he's in the midst of battling the Rangers' new Blaze Megazord, and takes it on herself, leading to her Foxatron being destroyed. She might have stood a beter chance if she had worked with Wolvermean, rather than take him out for no real reason.
One of Galvanax's generals, an arrogant swordsman that only seems to respect Galvanax.
- Acquitted Too Late: Ripcon is framed as a traitor by Madame Odius, and is subsequently destroyed in episode 12. In episode 21, nine episodes after his death, Odius gloats to Galvanax that Ripcon was never the traitor: she was. Unusually for this trope, it's not Galvanax who executed him - he was destroyed by the Rangers while trying to prove his innocence and get back on Galvanax's good side.
- Adaptation Personality Change: Raizo was never a Butt-Monkey nor a Momma's Boy in Ninninger.
- BFS: In his final battle, a pair of Skullgators combine into one for him. It doesn't last.
- Bizarre Alien Biology: In episode 4, Galvanax is considering a pig monster (recycled from Jungle Fury), but considers them "too ugly". Ripcon's response?Ripcon: That's my mother you're talking about.
- Butt-Monkey: Tends to get blamed and kicked around by Galvanax when one of the monsters fails against the Rangers.
- Co-Dragons: Alongside Madame Odius, to Galvanax.
- Dual Wielding: Carries a pair of katanas with him everywhere.
- Even Bad Men Love Their Mamas: Played for laughs. When Galvanax was looking for a new contestant, he came across a hideous pig-like monster, which he declares exceptionally strong but too ugly. Ripcon angrily takes offense, pointing out that the monster in question is his mother.
- Frameup: Madame Odius lies to Galvanax that Ripcon is responsible for hiding the Gold Ranger on their ship and for the scheme with the robot Aiden, leading to his being sent into battle with the Rangers for the last time, ending in his death.
- Jerkass: Taunting Brody about his father's death is only the beginning and he enjoys antagonizing anyone he perceives to be below him. He comes off as more sadistic than the all-business Galvanax and Madame Odius.
- Properly Paranoid: Warns Galvanax against trusting Madame Odius. And likely with good reason, considering she secretly has the Gold Power Star.
The host of Galaxy Warriors, observing the events of the show with his Buzzcams.
- Adaptation Personality Change: His sentai counterpart, Baron Nero, was a dour, dutiful nobleman. Cosmo Royale is not.
- Canon Immigrant: With the exception of his head, which is an original creation, his suit originated from Ressha Sentai ToQger (the previous Sentai that did not receive a Power Rangers adaption), as opposed to Ninninger.
- Catchphrase: Always says "Gigantify!" when he enlarges a monster, often preceded by some variant of "Should we give X another chance?"
- Cloudcuckoolander: Is rather eccentric, energetic, and happy on stage.
- Deadpan Snarker: Is not afraid to mouth off to contestants should they fail.Cosmo Royale: "While you didn't earn a Power Star, you did earn a trip to the hospital."
- Enemy Summoner: His "Gigantify" machine can also be used to summon Skullgators by pressing its red (center) button.
- Game Show Host: He hosts the Galaxy Warriors broadcast.
- Ladies and Germs: He uses "monsters and maidens" in "Poisonous Plot", and "Ladies and gentlemonsters" regularly.
- Large Ham: But of course.
- Laser-Guided Karma: In "Reaching the Nexus". After forcing Victor and Monty to juggle with explosives, he and Badonna are blown up when Victor and Monty throw those same explosives right back at them.
- Make My Monster Grow: His purpose. When a monster is destroyed at normal size (or requests it earlier), he has a special machine with three buttons (blue, red and yellow) wheeled onto stage. If the audience's outcry is loud enough, he 'gigantifies' the monster by pushing the blue (left) button on the machine, which fires an energy ray from the bottom of the ship.
- Not-So-Harmless Villain: He usually stays on the ship and is seen as goofy comic relief who cares only about their ratings, causing Galvanax to treat him as a nuisance. However, in "Grave Robber", he personally set the Rangers up, forcing them to play his board game, where if they lose then they're destroyed. Had it not been for Levi, he would have actually won.
- Punch-Clock Villain: Given how much he seems to care about their ratings, it seems like he's only helping Galvanax because it is literally his job.
Fake Aiden Romero
A robot replica of Brody's brother, who comes to find the team at the end of The Ranger Ribbon.
- Chekhov M.I.A.: He's seen as a kid during the first episode's Distant Prologue, but has vanished in the ten years since. He eventually comes to find the team after seeing them on the news. It eventually turns out the real Aiden has been with the team for longer than they expected, but without his memories since they were stolen and transferred into the robot.
- The Mole: Turns out to be a robotic spy for Madame Odius.
The former Big Bad of the previous season, Dino Charge. This is the Sledge who got sucked into the black hole at the end of that series. He somehow survived and managed to arrive in the dimension where Ninja Steel takes place along with his wife, Poisandra, and tech expert, Wrench.
- Back for the Finale: Shows up in the final episode of the series (a Christmas one, no less) long after Madam Odius has been taken care of. He tries his hand at getting the Ninja Stars, but Preston manages to escape his grasp and Koda helps to defeat him.
- The Cameo: He appears at the start of the second season of Ninja Steel. Though more than likely will come back later since Madam Odius tricked him into taking the asteroid that had the Super Ninja Steel on it, unaware that Odius took it all before he did. Sure enough he did but by then, the events of the series had passed and he's more or less a loose end.
- Final Boss: Oddly enough, he's the last villain faced in this series. Though only in the last episode rather then a series wide one.
- History Repeats: Ends up foiled by the Rangers again and, for an added kicker, ends up once again with a bomb exploding in his face.
- Not Quite Dead: He was destroyed twice over in the Super Dino Charge finale. But while the one the Dino Charge Rangers defeated in the past was indeed destroyed after being flung into the sun, the one who got sucked into the black hole caused by the Dark Energem survived, and since he's in another dimension, that prevented him from becoming a time paradox.
- Unexplained Recovery: Apparently you can survive a black hole, as he's none the worse for wear when he comes into the Ninja Steel dimension.
One of Sledge's prisoners who joined up with Galaxy Warriors after he repaired their ship.
- Abhorrent Admirer: Toward Brax, who doesn't appreciate the multiple fan letters she sent him.
- Adaptational Personality Change: Her Sentai counterpart, Ariake no Kata is not a Social Darwinist, but a selfish and vain Narcissist who loves Mangetsu as much as a mother would love her son, even though Mangetsu himself is an Enfant Terrible.
- Adaptation Relationship Overhaul: In Ninninger, Mangetsu was the son of Ariake no Kata and Gengetsu, and she was very loving towards him. Here, they are not related (in fact, they originate from separate dimensions), and Badonna is instead an overbearing Fangirl toward Brax.
- Combat Hand Fan: In battle, she wields a fan capable of firing energy blasts at the Rangers.
- I Fight for the Strongest Side: Feels she can serve Odius better than being Sledge's prisoner, even proving her loyalty by revealing to Odius why Sledge really wants the asteroid - for the Super Ninja Steel, thus allowing Odius to preemptively take the Ninja Steel for herself while letting Sledge believe the asteroid still has it..
- Laser-Guided Karma: In "Reaching the Nexus". After kidnapping Victor and Monty and forcing them to be clowns, she and Cosmo are blown up when Victor and Monty throw the explosives they were made to juggle with right back at them.
- Unrelated in the Adaptation: In Ninninger, she was Gengetsu's wife and Mangetsu's mother. Here, she never even met Galvanax, and is a huge fan of Brax rather than his mother.
- Voiced by: Rajneel Singh
The main villain of the special episode Dimensions in Danger.
- Hoist by His Own Petard: The last of the "Mega Arrows" he intended to use to destroy the barriers between dimensions ended up being used to finish him.
- Multiversal Conqueror: His goal is to break down the barriers between dimensions and conquer them all.
- Two-Faced: The right and left sides of his body have different designs.
- Voiced by: Jamie Linehan
A famous fighter of at least 12 Solar Systems, Brax and General Tynamon were summoned by Madame Odius to defeat the Power Rangers.
- Adaptation Relationship Overhaul: In Ninninger, Mangetsu was the son of Ariake no Kata and Gengetsu. In Power Rangers, he's just a general with no family relationship between the two.
- Bash Brothers: With Gorrox.
- BFS: Wields a huge barbarian like sword.
- The Dreaded: The strongest of the generals, and before "Doom Signal", he bested the Rangers in most of their matches.
- Famous Last Words: "I'm sorry, Badonna! I failed!"
- Unrelated in the Adaptation: In Ninninger, Mangetsu was the son of Ariake no Kata and Gengetsu, and half-brother of Kyuemon Izayoi. Here, he never even met Galvanax, and just works on Galaxy Warriors as a contestant under Odius and Badonna rather than being related to them.
- Wounded Gazelle Gambit: He pretends to be weak during his first fight against the Rangers in order to make them overconfident the next time they fight. And it worked.
- Voiced by: Estevez Gillespie
The manager of Brax, the two were called in by Madame Odius to defeat the Power Rangers. He has a big secret that he doesn't want anybody to know about.
- Dark Secret: In "Prepare to Fail", Badonna claimed to know a secret about him that he wouldn't want anyone else to know about. "Magic Misfire" reveals that Tynamon is actually a very small monster operating a robotic suit created in his image.
- Demoted to Extra: Somewhat downplayed, but his Sentai counterpart, Maskage Tsugomori, was one of the main members of the Ninninger villain group (his place being essentially usurped by Cosmo Royale) and lasted far longer due to being introduced immediately after the death of Ripcon's counterpart.
- Famous Last Words: "NO! NOO!! I made a big mistake!"
- Meaningful Name: "Tynamon" sounds like a warped version of "tiny man". He is ultimately revealed to be a miniscule creature operating a human-sized suit.
- Voice Changeling: In "Happy to Be Me", he swaps voices with Levi in order to activate the stolen Fusion Star.
The standard robotic Mooks that serve aboard the Warrior Dome. Armed with spiky spears.
- All Asians Wear Conical Straw Hats: Their hats are designed after feudal Japanese footsoldiers.
- Ascended Extra: Retired very early on in Ninninger, but persisted throughout Ninja Steel.
- Blade on a Stick: They carry spears.
- Boom Stick: Spears that blow stuff up!
More powerful robotic soldiers that serve Galvanax. Armed with large forked swords.
- Cool Sword: Armed with pronged swords (sort of combining a sword and a Satsumata, another kind of Blade on a Stick.
- Oni: They ditch the hats for a more Japanese-ogre-like appearance. Other than that, theyre the same as Kudabots.
FoxbotsSpecial robotic soldiers directly under the command of the Galactic Ninjas.
- Fusion Dance: Odius's magic combines four of them into her Foxtron Zord.
SkullgatorsGiant creatures armed with pick-like weapons that get sent out to battle the Zords if the Monster Of The Week doesn't get enough support from the Galaxy Warriors audience.
- BFS: Two of them combine into a single sword for an enlarged Ripcon to use. However, it winds up breaking back apart into its component Skullgators after the Ninja Fusion Zord is formed and brings out its BFS against them.
- The Brute: As villains who rely on physical abilities.
- Cool Sword: Two of them can become one of these.
- Dem Bones: Per the name, they're essentially made up of bones.
- Dumb Muscle: They're pretty much just brute force with no strategy.
- Kaiju: A naturally giant species of monster which get sent down to fight the Megazords from time to time.
- More Teeth than the Osmond Family: They're about as toothy as the Greenzillas from Power Rangers Dino Charge.
- Adaptation Species Change: Just like MMPR season 3, they're youkai in the Sentai but aliens here.
A warrior who was briefly seen fighting Korvaka.
- Flat Character: He doesn't have much character, not even any speaking lines. He just shows up to be destroyed.
- Prop Recycling: His suit was originally used as Venjix's first body in Power Rangers RPM.
- Strong Family Resemblance: He is revealed in episode 4 to have an identical brother.
- We Hardly Knew Ye: Is only seen on screen for a brief fight before being destroyed.
The first warrior sent to Earth by Galvanax to retrieve the Ninja Nexus Prism from Brody Romero.
- Cats Are Mean: If he's supposed to be a cat just like Mig, then he's definitely this.
- Curb-Stomp Battle: Gives one to Brody before he became a ranger. Of course, this turns the other way around once Brody, Preston and Sarah retrieve their Power Stars.
- Mythology Gag: He is said to be the champion of the Ninninger Galaxy, a reference to Shuriken Sentai Ninninger, the Sentai which Ninja Steel is adapted from.
- Prop Recycling: His suit was originally used for the cyborg form of the Fearcat Mig from Power Rangers Operation Overdrive. His sword belonged to another Fearcat by the name of Benglo.
- Starter Villain: Is the first monster to be fought by the rangers while morphed.
A weasel monster with chainsaw-like claws sent to Earth to retrieve the Ninja Power Stars and the first monster to fight all five core Ninja Steel Rangers.
- Dies Differently in Adaptation: In Ninninger, the ranger's Zords formed together into Shuriken Gattai Shurikenjin (the Ninja Steel Megazord) to destroy Ripperrat's Sentai counterpart. As the Megazord wasn't to appear until the next episode, Ripperrat only fought the ranger's individual zords and was destroyed by a combined blast from the ranger's Ninja Blasters. The show worked around this by giving Ripperrat an identical twin brother, Trapsaw, and used the Megazord footage for his death in a later episode.
- Expy: Of Jason Voorhees. He wields two chainsaw claws and the pattern of his armor strongly resembles a hockey mask, even donning some red markings that resemble those on Jason's mask.
- Razor Wind: One of his main attacks.
- Sadist: He really enjoys and emphasizes the idea of inflicting pain upon the rangers.
A fire themed monster donning roller skates.
- 0% Approval Rating: The audience was completely dissatisfied with his performance, which led to him not being allowed to grow giant.
- Back from the Dead: Is one of four monsters to fight the rangers as ghosts in Ninja Steel's Halloween special.
- Dies Differently in Adaptation: In Ninninger, he was killed off by Ripcon's Sentai counterpart as opposed to being destroyed normally by the rangers. Since this would probably come off as confusing, he was instead destroyed by a combined attack from the rangers in Ninja Steel.
- Playing with Fire: Most of his attacks revolve around him shooting fire.
- Pride: He's very egotistical and full of himself. Ultimately this is what led to his downfall.
- Super Speed: One of his main abilities.
- Too Dumb to Live: He didn't seem a bit suspicious that Calvin offered him his Power Star if he could simply beat him in a race, nor did he notice that Calvin slowed down halfway through. And ultimately this leads to him being ambushed and destroyed by the other rangers.
A kappa/fire extinguisher monster that can create a mist that makes people move more slowly.
- The Ace: Is hyped up by Galvanax to be this.
- Ambiguous Disorder: His Cloudcukoolander tendencies along with sounding nearly on the verge of tears before being destroyed implies he could suffer from emotional instability. The fact that he mentions having a therapist at one point doesn't help either.
- Back from the Dead: Is one of four monsters to fight the rangers as ghosts in Ninja Steel's Halloween special.
- Cloudcuckoolander: He's rather odd in nature. He's tends to act goofy and child-like around his opponents and does strange things such as make odd noises while stealing the ranger's Ninja Power Stars.
- Flight: Achieved by using the extra nozzles to propel himself like one would use a rocket pack.
- Hilarious in Hindsight: The monster before him, Spinferno, is a fire themed monster who was known for his speed. Slogre is a fire extinguisher monster that can slow people down.
- Kappa: What he's based on.
- Near-Villain Victory: Was probably the most successful monster up to this point, almost getting away with three Ninja Power Stars.
A spider themed monster that can consume and trap people and things in the container on his back.
- Big Eater: Ate a Kudabot prior to his introduction. Also one of the reasons he attacked the rangers was because of his big appetite.
- Famous Last Words: "Down came the Rangers and washed the spider out!"
- Fat Bastard: He's noticeably a bit shorter and pudgier compared to the other contestants.
- Giant Spider: Very much so. Even moreso after he's Gigantified.
- Multi-Armed and Dangerous: It comes with being a spider monster.
- Near-Villain Victory: If it wasn't for Calvin, he would have gotten away with a full stomach and four Ninja Power Stars.
- Sizeshifter: Could shink himself to the size of an ordinary spider, even able to keep the strength of his normal sized form. His Vacuum Mouth attack could also be considered this.
- Vacuum Mouth: Can turn into a large cloud-like vortex to suck up and eat what or whomever may be in his way.
A Scottish Tengu monster that can hypnotize people using his bagpipes.
- Bizarre Alien Biology: He has a clarinet shaped nose that he plays his bagpipes with.
- Brave Scot: Is Scottish and not afraid to fight the rangers.
- Facial Horror: His nose is ripped right off his face and crushed by the Rumble Tusk Ninja Steel Megazord.
- Famous Last Words: "This is a real bum note!"
- Mind-Control Music: The music from his bagpipes make his victims do whatever he wants. He demonstrates this on Cosmo and a group of Kudabots by making them dance in front of the Galaxy Warriors audience. He later uses this against the rangers to try to force them to give him their Power Stars.
- No-Sell: His music doesn't work on Kody, or Redbot.
- Pinocchio Nose: Can extend his nose out as an attack when he went giant. This gets crushed when the Rumble Tusk Ninja Steel Megazord's trunk coiled around it when he tries it a second time.
- Tengu: The monster he's based off of.
- Weapon of Choice: His bagpipes. Later uses a fan after the bagpipes are destroyed.
A satellite dish monster that steals Sarah's cloning technology in order to make clones of Galvanax.
- Ambiguous Robots: While he has a somewhat natural appearance, his voice sometimes has a robotic tone to it and glitches out at times, he emits beeping and buzzing sounds constantly, and he short circuits a few times, most notably when he was tricked into stealing a virus, afterwards stating that he needed to reboot.
- Back from the Dead: Is one of four monsters to fight the rangers as ghosts in Ninja Steel's Halloween special.
- Beware the Nice Ones: Kind of a villainous example. He doesn't come off as much of a Jerkass compared to other monsters in the season. Doesn't change that he's loyal to a crazed alien gladiator that wants the rangers' source of power regardless of the cost.
- Beware the Silly Ones: He has a silly and somewhat innocent demeanor. Despite this, he is still evil and a dangerous threat to the rangers.
- Clone Army: Created eight giant clones of Galvanax that were just as strong as the real Galvanax. The only way to stop them was to destroy Hacktrack's cloning technology.
- Verbal Tic: His voice glitches out, causing him to stutter and repeat words.Hacktrack: I need to reboot... bootbootbootboot...
Hacktrack: I'm back online and I'll make you pay for w-w-what you di-zzt-did!
A hulking rock and bulldozer monster who creates a chain of massive earthquakes in Summer Cove.
- Bizarre Alien Biology: While the padding on his legs and feet could be seen as boots, his claw and scoop arms seem to be physically attached to his body. It's unknown if they're natural or cybernetics that replaced Stonedozer's real arms.
- Body Horror: Referring back to Stonedozer's Bizarre Alien Biology, he could be seen as this if his arms actually are thought of as cybernetic replacements.
- Earthquake Machine: His main ability makes him this. Also helps that he appears to be part machine.
- Genius Bruiser: Despite his brutish demeanor, he seems to be as intelligent as most of the contestants sent after the rangers.
- Jerkass: He has no qualms against destroying a large stadium, potentially killing many innocent bystanders who had nothing to do with his mission, just to get the Power Stars.
- Near-Villain Victory: Not only almost got all six Power Stars, but almost killed the rangers at the same time.
- Would Hurt a Child: One of Levi's young fans was almost crushed by a piece of the falling stadium that Stonedozer destroyed.
Ripperrat's physically identical brother.
- Foil: To his brother Ripperrat. Ripperrat was sadistic, cunning, and intelligent, while Trapsaw is bumbling, absent-minded, and cowardly.
- Dirty Coward: He tries to flee most of the fights he instigated when the odds end up against him.
- Even Bad Men Love Their Mamas: He waves and calls out to his mother when he finally finds the Galaxy Warriors audience.
- Hoist by His Own Petard: Two of his three traps wind up hitting him instead.
- Idiot Ball: His dimwitted personality is apparent throughout the episode and is even quickly pointed out by Galvanax. Examples of his rather idiotic escapades include not being able to find the audience when Cosmo tried to introduce him as the next contestant, failing to demonstrate his trap ability by hitting himself in the head with an anvil, walking straight into his own trap after it failed to work on Brody, and even forgetting where he laid one of his traps.
- Trap Master: He tries (and fails) to be this, with all three of his shown traps failing to hit their intended target.
A tea and steam monster that poisons Brody.
- Adaptational Badass: She is much more aggressive than her sentai counterpart.
- Ominous Fog: Is briefly seen creating a steam-like fog while fighting the rangers.
- Playing with Fire: One of her attacks is shooting large (sometimes poisonous) fireballs at her opponents.
- Poisonous Person: Her main ability and schtick revolves around her shooting poison.
- She's a Man in Japan: Her sentai counterpart, Yokai Enraenra, is a male.
- Taking the Bullet: She originally intended to poison Levi and Hayley, but hit Brody instead, who jumped in the way to defend Levi.
A living sneaker monster who loves competition.
- A Wolf in Sheep's Clothing: Disguises himself as a human runner under the name Bob Shoespike.
- Affectionate Parody: Has a voice that sounds just like Arnold Schwarzenegger, though it's clearly not him.
- Collector of the Strange: Turns losers into trophies for him to collect.
- Combat Pragmatist: In a non combat example. During the three legged race with Brody, Levi, and Calvin, he switches out his Basherbot teammates with fake and light dummies, allowing him to run faster.
- Cyclops: Naturally, due to his Sentai counterpart being based off of a Yokai that is commonly depicted as one of these.
- Famous Last Words: "I thought I was a shoe-in to beat you!"
- Morphic Resonance: The shirt worn by his human form has the same colors as his monster body.
- Super Speed: His main power is his immense and superhuman speed.
- Unsportsmanlike Gloating: His entire personality is centered around being a poor sport, often belittling those who lose to him and despises the idea of him losing. He also has a magic baton that makes others like this should they touch it.
A lion and toolbox monster. He was originally Princess Viera's bodyguard, but betrayed her in order to take the throne of the Lion Galaxy.
- Adaptation Species Change: He's a monkey in Ninninger instead of a lion. This is due to the Yokai he's based off of, Nue, commonly being depicted as a monkey.
- Bodyguard Betrayal: Betrays Viera when she proves to be "too soft".
- Curb-Stomp Battle: Almost the entirety of the first episode he appears in is him basically beating the living crap out of the rangers.
- Dragon with an Agenda: He claims that he always viewed Viera as a weak ruler and fancied himself as a better ruler of the Lion Galaxy, showing that he planned to overthrow her long before Galvanax's interference.
- Famous Last Words: "This is not a drill!"
- Improbable Weapon User: He uses a lot of construction tools for combat (wrench, drill, buzzsaw) but they are effective against the rangers.
- The Starscream: Planned on usurping the throne from Viera as he saw her to be too weak for the throne.
- This Is a Drill: Sports one on his right arm.
- Wake-Up Call Boss: The first Galaxy Warrior to actually give the Rangers trouble, damage their weapons, and destroy the Ninja Fusion Zord. The only reason he doesn't destroy them here and now is because the Lion Fire Zord piloted by Viera forces him to retreat.
- The Worf Effect: Got hit by this once Brody got access to the Lion Fire Armor and the Lion Fire Zord.
A chimpanzee and telephone monster that can imitate others' voices.
- Beware the Silly Ones: As ridiculous as he looks, he put together a genuinely clever plan, and almost succeeded in capturing all the Rangers. He only failed due to circumstances beyond his control, as he called Levi while pretending to be Hayley, unaware that Hayley was right next to him.
- Bizarre Alien Biology: He appears to be organic, yet has a phone and dial physically attached to his body and a speaker poking out of his mouth.
- Everything's Better with Monkeys: He's a chimpanzee and has the erratic behavior of one too.
- Famous Last Words: "I've been disconnected!"
- Gonk: A hunched, furry creature with no noticeable head or shoulders, strange rabbit-like ears, and a barely simian face stretched across his chest twisted in a goofy and somewhat creepy grin. Even for a monkey he looks weird.
- Hoist by His Own Petard: He calls Levi pretending to be Hayley when Hayley was standing next to him the entire time, which is what led to his plan falling apart.
- Make Me Wanna Shout: He can produce a sonic shockwave that briefly immobilized the Rangers' Zords.
- Vine Swing: He would swing on a vine to ambush the rangers and steal their Power Stars.
- Voice Changeling: He could imitate a person's voice perfectly once he recorded a sample of it.
A cat and watch monster who can freeze people in time.
- Absurd Phobia: Despite being a lumbering behemoth of a monster, he is still scared of dogs like a normal cat.
- Attack Its Weak Point: To disable his time freezing powers, you need to destroy the source. The clock on his chest.
- Cats Are Mean: He is a cat and villain after all.
- Famous Last Words: "My entire plan has been an utter cat-tastrophe!"
- Time Stands Still: Has a version of this as his main ability. While he can't make time itself stand still, he can put a spell on objects, which will freeze whomever touches them in time.
- Too Dumb to Live: He all but outright told the Rangers that the clock on his chest is the source of his powers and his weakness, which leads to his plan completely failing.
- Verbal Tic: He tends to say 'meow meow' after his sentences.
- He also tends to hiss and growl when angry.
A magician monster with various powerful spells.
- The Ace: Openly proud of his powerful and advanced magic skills. Even Preston acknowledges this.
- Baleful Polymorph: He turns Brody, Sarah and Calvin into a teddy bear, heart and rubber duck.
- The Blank: He doesn't seem to have any form of face.
- Blown Across the Room: More like blown across the United States, which is what he does to Levi using his magic.
- Evil Sorcerer: A villain who is a master of various spells.
- Famous Last Words: "Now you see me, now you don't!"
- Impossibly Cool Clothes: He wears a red robe and hood with various elaborate designing on it.
- Magic Staff: His main weapon is a staff that doubles as a witch's broom.
- Taken for Granite: Turns the Megazord into stone. However Levi returned at the right time to stop the monster.
A monster who can create a powerful force field.
- Deflector Shields: His main ability is to create powerful force fields that strongly resemble brick walls.
- Famous Last Words: "I hit a wall!"
- Psychopathic Manchild: His voice and personality are similar to that of a mischievous child instead of a monster.
- Pint-Sized Powerhouse: He's noticeably pretty small, appearing to be slightly shorter than Cosmo. Regardless he's still a fairly strong enemy for the rangers.
- Shoulder Cannon: Has two that resemble railroad crossing gates stretching from his back.
- Super Toughness: Even when he isn't using his force field, Forcefear can easily shrug off the Rangers' attacks.
- Wake-Up Call Boss: The first one since Drillion. Not only was he a fairly strong opponent, but absolutely none of the Rangers' attacks or initial weapons could break his force field.
- Voiced by: Chelsea McEwan Miller
A cat and watch monster who can freeze people in time. ...again.
- Distaff Counterpart: Is female, though identical to the male Cat O'Clock.
- Famous Last Words: "And this was my ninth life!"
- Know When to Fold 'Em: She tries to escape when her plan is foiled, though once Brody accidentally becomes giant, she doesn't hesitate to grow herself as well and attack him.
- Make My Monster Grow: Her time control device also has a gigantify option, since the Warrior Dome (still damaged from the previous episode's events) isn't up to firing the beam.
- Revenge: She wants to make the Rangers pay for the death of her cousin Cat O'Clock.
- She's a Man in Japan: Her sentai counterpart Mataneko was male, with the same voice actor as Cat O'Clock's counterpart Nekomata.
- Strong Family Resemblance: A Running Gag this season, yet another monster who is an identical relative of a past monster.
- Voiced by: Stephen Brunton
An elephant monster that can find anything via smell.
- Famous Last Words: All I smell is defeat!
- The Nose Knows: Can sniff out anything, including the Ninja Nexus Prism. Even if it's on another planet.
- Super Senses: Has a heightened sense of smell.
- Voiced by: Mark Wright
A Frankenstein themed monster who can power himself up through lies.
- Demoted to Extra: In Ninninger, he is one of the Western Yokai, a group of three powerful monsters who are based on European monsters as opposed to Japanese folklore.note In Super Ninja Steel, he is just another monster of the week with no actual distinction over the other contestants.
- Famous Last Words: "Oh, no! The truth hurts!"
- Frankenstein's Monster: His Ninninger counterpart was themed after this.
- Genius Bruiser: He's one of the smarter contestants, and one of the larger and more powerful ones at that.
- Living Lie Detector: He knows exactly when someone is lying, which will power up his Bolt Blaster.
- Made of Iron: Is very strong, and one of the harder enemies to take down.
- Weapon of Choice: His Bolt Blaster, a flashlight shaped bolt on his stomach which fires purple bolt shaped energy, which he tries to use to disable the Rangers' Power Stars. It works until Calvin admits the truth, negating the specific lies that partially powered up the Bolt Blaster and making the bolts disappear.
- Portrayed by: Becky McEwanVoiced by: Teulia Blakely
A fountain pen/cyclops/umbrella themed monster that was sent to hypnotize Levi by posing as a human named Jess.
- A Wolf in Sheep's Clothing: Disguises herself as a human named Jess.
- Famous Last Words: "This whirlwind really blows!"
- Ironic Echo: While Spyclops is disguised as a human, Victor continually tries to woo her, and after his latest attempt, he asks "Am I your type now? Be honest." Spyclops responds by turning back into her true form and asking the same question back at him, who promptly gets scared off by her terrifying appearance.
- She's a Man in Japan: Her sentai counterpart, Yokai Kasabake, is a male.
- Voiced by: Adrian Smith
An inflatable raft/wave/octopus themed monster sent to cause a tsunami to flood Summer Cove.
- Blade on a Stick: Wields one.
- Famous Last Words: "I've got a sinking feeling!"
- Shock and Awe: Can shoot lightning bolts from his eyes.
- Voiced by: Jamie Linehan
A lawnmower themed monster that sends the rangers to his own video game to steal their Power Stars.
- Brainwashed and Crazy: Can inflict this with his "Controller Beam". At least until he was gigantified.
- Famous Last Words: "Are you using cheat codes?!?!....Oh, no!"
A group of four monsters summoned by Badonna to take on the Power Rangers. They are Wolvermean, Speedwing, Rygore, and Venoma.
- Adapted Out: So far, Kuroari's Super Ninja Steel counterpart has not been seen. note
- Animal Motifs: All of them are based on an animal.
- Bee People: Venoma.
- Feathered Fiend: Speedwing.
- Psycho Rangers: Of a sort. They have their own ninja abilities to counter against the Power Rangers' abilities. They could also be compared to the Five Fingers of Poison from Jungle Fury.
- Quirky Miniboss Squad: A themed team of ninjas, each interested in pushing the rangers to their limits with their own unique ninja powers.
- Rhino Rampage: Rygore.
- Unwitting Pawn: They were hired by Odius supposedly to destroy the Rangers. In truth, Odius wants the Rangers to destroy them so she can collect their Ninja medallions.
- Wicked Weasel: Wolvermean.
- Voiced by: Jamie Linehan
The wolverine themed leader of the Galactic Ninjas and self-proclaimed "Thief of Memories."
- Adaptation Species Change: In Ninninger Wolvermean is a badger. Here, he's a Wolverine.
- Ascended Extra: In Ninninger, he is just another member of his counterpart's ninja clan and has no known authority over his comrades,note while in Super Ninja Steel, he is the undisputed leader of the Galactic Ninjas.
- Disc-One Final Boss: Arguably this for the Galactic Ninjas arc. Despite being the leader, he is the third out of the four members to be killed, with Venoma lasting a couple episodes longer than him. He's also the first to be fought, and lose his medallion, so he spent most of his time in a state where he's known to be weaker than his compatriots. He does, however, remain a force to be reckoned with when he returns to the battlefield.
- Epic Flail: Can use his shield attached to his chained ax.
- Famous Last Words: Curse you Odius, you treacherous, wicked witch!
- In the Back: How Odius kills him during his second giant battle, with the katana from her Foxatron.
- Laser-Guided Amnesia: Can steal people's memories in the form of orbs.
- Jack-of-All-Trades: Although he isn't overpowering, Wolvermean is effective in all areas of combat. His chain has enough power and versatile range, skilled enough in ninjutsu, quick enough to blindside half of the team and steal almost all of their memories, and his shield is useful for close range combat and defense.
- Killed Off for Real: Is stabbed in the back by Odius using her Foxatron Zord due to him taking too long to destroy the Rangers and their new Ninja Blaze Megazord.
- Not Quite Dead: He survives the Ninja Ultrazord's attack and swears revenge before returning to the Warrior Dome.
- Voiced by: Ian Hughes
A falcon themed Galactic Ninja and self-proclaimed "fastest ninja alive."
- Famous Last Words: "You've made quick work of me!"
- Hoist by His Own Petard: Brody accidentally stuck Speedwing's own Speed Power Star from behind, making his speed uncontrollable and falling into the rangers line of attack.
- Irony as She Is Cast: Ian Hughes previously voiced Slowgre.
- Lightning Bruiser: It's no wonder he names himself the fastest Galactic Ninja. His speed, even when reduced, is still fast enough to run circles around the rangers. That doesn't ignore his strength and defense. He can knock out the Rangers with just a sword slash, has enough range to keep his opponents at bay, and can deflect elemental ninjutsu with little difficulty. The only way the Rangers win is through making him unable to control his own speed star.
- Super Speed: With his Speed Power Star.
- Toothy Bird: His mouth resembles a bird's beak, but also has teeth.
- Voiced by: Charlie McDermott
A Rhino themed Galactic Ninja and self-proclaimed "Master of Surprise attacks and Strategy."
- Evil Genius: Claims to be the Galactic Ninja of strategy and surprise attacks, but is more like The Brute except with more creative attacks.
- Famous Last Words: "I just need one more roll of the dice!"
- Genius Bruiser: He claims that he is the master of surprise attacks and strategy. What we saw of him, however, is using a dice to create attacks, making his this claim ring pretty hollow.
- Hoist by His Own Petard: The Rangers defeat him by creating a new strategy with their clones to overwhelm him with a new attack while he's busy trying to spin the dice and when he grows giant, his focus on that distracts him from the Rangers just deciding to finish him off already.
- Informed Ability: The "master of surprise attacks and strategy" is anything but. Because he chooses his attack with a roll of the dice, the Rangers can't guess his attacks because even he can't; not strategy but random chance. Also, having to wait for the dice to land and then begin his attacks makes him anything but a master of surprise attacks. He meets his end the instant it occurs to the Rangers to just blast him before he can do all that.
- Voiced by: Aidee Walker
A bee/wasp themed Galactic Ninja and self-proclaimed "Ninja of Dangerous Love."
- Cupid's Arrow: She can fire arrows that can cause anybody to fall in love with the first person they saw. Her and Madame Odius's plan is to make the Rangers fall in love with her, which would be easy to collect the Power Stars from them.
- Dark Chick: The only female ninja in the Galactic Ninjas.
- Famous Last Words: "The Galactic Ninjas are no more!"
- Last of Their Kind: After Wolvermean's death, she becomes the last Galactic Ninja the Rangers have to face.
- The Worf Effect: Got hit by this in Episode 9 due to Madame Odius holding onto her medallion for Foxatron. However, with it, she becomes a force to be reckoned with.
- Voiced by: Emmet Skilton
A wolf themed monster who can turn people into werewolves using his Cursed Claws.
- Demoted to Extra: Like Deceptron before him, his Sentai counterpart was one of three Western Yokai in Ninninger, and was also directly responsible for murdering Starninger's father and brother. In Super Ninja Steel he has no direct backstory with any of the other rangers.
- Famous Last Words: "You've scratched me out!"
- Our Werewolves Are Different: Can turn people into werewolves if they are struck by one of his claws. Slowly becoming increasingly savage, they remain as werewolves until the claw is removed.
- Savage Wolves: A wolf like monster with a cruel and vicious personality to boot.
- Voiced by: Tarun Mohanbhai
A barbell themed monster who was arrested for 73 unauthorized uses of explosives. He was sent down to use his bombs to destroy the Power Rangers.
- Gonk: He has a gray, shrivelled-up face set in a perpetual frown. When Sheriff Skyfire shows the Rangers his "wanted" poster, Sarah calls him "the ugliest monster [she's] ever seen".
- Voiced by: Andrew Faulkner
A keyboard themed monster with a powerful computer virus.
- Eye Beams: From the spacebar eyes.
- Famous Last Words: "I should have backed myself up!"
- Teleport Spam: By pressing the spacebar, he moves himself through space. You'd think that'd be the "escape" key instead...
- Voiced by: Andrew Faulkner
A millipede electric monster sent down to zap the electricity of cars in Summer Cove.
- Famous Last Words: "Oh, no! A shocking defeat!"
- Shock and Awe: Fitting for his name, he has electricity based powers
- Voiced by: Jeremy Birchall
A steamroller-skeleton monster created by Tynamon by fusing six Skullgators together with the stolen Fusion Star.
- Adaptational Intelligence: Downplayed; while he's no genius, he's still smarter than his Sentai counterpart, who was Dumb Muscle of the highest order.
- Dem Bones: Makes sense given what he was created from.
- Fusion Dance: Created by joining six Skullgators together.
- The Juggernaut: He overwhelmed the Ninja Steel Megazord with ease, and was too strong for the Blaze Megazord to hold off for long. It took the new Blaze Ultrazord combination to finally bring him down.
- One Of These Is Not Like The Others: He is the only monster so far this season that was created, and not an already existing contestant.
- Our Giants Are Bigger: Most monsters are usually the same size or shorter than the Megazord while giant. Megamauler, on the other hand, seems to massively tower over both the Ninja Steel Megazord and Blaze Megazord. Even when seen next to the Blaze Ultrazord, which is also very massive, Megamauler still looks slightly bigger.
- Portrayed by: Michael SaccenteVoiced by: Jay Simon
A pirate-bull monster sent down to hold auditions for Madame Odius's new show.
- Voiced by: Sarah Hart
A snow/shaved ice maker themed monster that is one of Sledge's outlaws.
The main antagonists of Super Ninja Steel's halloween special. A group of seven monsters who swap bodies with the rangers in hopes that they would be destroyed in the Halloween Intergalactic Court.
- Voiced by: Jay Simon
The leader of the Gruesome Grunts who swaps the bodies of his underlings with the rangers.
- Driven by Envy: He despises Odius and Galaxy Warriors. His goal is to have the Power Rangers vaporized in the courtroom so that he and his crew could become more popular than Odius.
- "Freaky Friday" Flip: Swaps the bodies of the other Gruesome Grunts with the rangers.
- Make My Monster Grow: Is able to make himself grow using his magical staff.
- Voiced by: Gareth Williams
A movie/camera themed Gruesome Grunt whose body is swapped with Brody's.
- Canon Immigrant: His suit is from Zyuden Sentai Kyoryuger instead of Ninninger, and was the only Debo Monster to not be adapted into Power Rangers Dino Charge.
- Voiced by: Emmet Skilton
A knife/lobster themed Gruesome Grunt whose body is swapped with Preston's.
- Voiced by: Stephen Brunton
A vampire themed Gruesome Grunt whose body is swapped with Calvin's.
- Demoted to Extra: He was one of three Western Yokai alongside Deceptron and Dreadwolf in Ninninger. Arguably the one that was hit the worst by this, as while the former two were still main threats in their respective episodes, Fangore is nothing more than a minor villain, with the main antagonist role for the special belonging to Versix.
- Vampires Hate Garlic: Is absolutely disgusted by garlic as most vampires. This weakness even transfers to Calvin after the two swap bodies.
- Voiced by: Lauren Jackson
A vampire/demon themed Gruesome Grunt whose body is swapped with Sarah's.
- Mythology Gag: Not the first time her suit was reused after its original debut. Just ask Dino Super Charge.
- Voiced by: Daisy Lawless
A mouth themed Gruesome Grunt whose body is swapped with Hayley's.
- Voiced by: Jeremy Birchall
A turtle/shell themed Gruesome Grunt whose body is swapped with Levi's.
- Turtle Power: He is themed after a tortoise.