Complete Monster/Power Rangers

Though Power Rangers is a children's series, it isn't free of this trope and it features some villains who are particulary evil and despicable.


 * Dark Specter from Power Rangers in Space is possibly one of the most evil villains in the franchise. He is behind all other villains before, who fear and obey him, and is known as "Grand Monarch of Evil" and is evil incarnate and incredibly powerful and can spread evil and brainwash people by mind control ( . He wants to take over the entire universe. Since he is a dark, demonic galactic overlord and is behind all villains and can spread evil, he definetly qualifes for this trope. While he is not as memorable as the other Big Bads, he is definitely one of the most evil villains in Power Rangers.
 * His minion Darkonda also qualifies. He was the one who kidnapped Karone in the first place and set her up to become Astronema, and on a few occasions, he forced Ecliptor to merge with him against his will. He even has no qualms about stabbing his friends in the back as he was the one to kill Dark Specter.
 * From Power Rangers Lost Galaxy, we have Deviot. In a show full of villains with standards, Deviot had none. He was a manipulative, treacherous Starscream who would cheerfully throwaway his men's lives, thought brainwashing was a useful tool, and had no loyalty to anyone. Deviot destroyed Scorpius to get his hands on the cocoon that had been intended for Trakeena to awaken her true potential. He hurtles the Terra Venture into another dimension, and finally fights Trakeena for the cocoon, until they both fall in. His influence turned Trakeena into a Complete Monster too. Under said influence, she organized suicide bombers, killed her mentor for refusing to fire on civilians, and later attempted to drain the lifeforce of innocent people to power herself up.
 * Power Rangers Wild Force has Master Org (both the Original Org and Dr. Viktor Adler): the original Master Org was an evil being that destroyed Animus, and when he was reborn,  and took full control of  . Dr. Viktor Adler was once a decent scientist working with Cole Evans' parents Richard and Elizabeth. But the moment Richard got to propose to Elizabeth first AND make a breakthrough on their research, saying that he's jealous is a gigantic understatement. He proceeds to consume the remnants of the original Master Org, turning him into an Org himself, and takes great delight in killing Richard and Elizabeth (Cole himself only escaped his wrath because Adler couldn't find him). The original Master Org was more or less your run-of-the-mill Doomsday Villain, but Adler was a human who was corrupted by his obsession with Elizabeth and the power of the Master Org.
 * One thing that must be considered is that Dr. Adler chose to be a monster. Most other villains were either born that way, had a Freudian Excuse, were raised to be evil, from a species who were Always Chaotic Evil, or otherwise had no choice over what they were. Dr. Adler is so monstrous because of the simple fact that he has no real excuse at all for being a monster (along with other villains in this page) like nearly every other Power Rangers. He became the second Master Org solely to enact a petty vengeance on two perfectly innocent people who had no idea they'd even incited his anger in the first place.
 * Cole outright says only someone without a heart would do something like Adler did. Cole then checks and confirms Adler doesn't have one.
 * Power Rangers Operation Overdrive has Flurious. He was shown as being more ruthless than his brother Moltor and treated Norg (dumb, but innocent Yeti) badly. He was the first of the two brothers to openly declare hostilities, attacking Moltor for the Corona Aurora and declaring "it's every man for himself" afterwards. What really pushes him into this territory is what he does in the final episodes: he . And in finale, he   and  . It is satisfying to see him.
 * Note,
 * Venjix from Power Rangers RPM in considered to be one of the scariest and most evil villains in the franchise. Destroying computer systems was part of his programming. But Destroying 99% of humanity and turning the world into a barren wasteland was all his idea. We also find out his master plan: . And he had forced labor camps where experiments in cyborg creation were performed on the laborers, and these labor camps make Hitler's labor camps PARADISIACAL by comparision. And when , there are children among them, who don't even look a year over ten. And  . Truly one of the most evil villains in franchise.
 * There's also Queen Bansheera from Power Rangers Lightspeed Rescue; even in shows for adults, you'd be hard-pressed to find a worse boss. She has four main minions, and she's responsible for the deaths of all of them, draining the life from one, blowing another to smithereens simply for being in the way, and erasing the minds of the last two, forcing the Rangers to kill them. She's notable as the only Power Rangers villain to get a Fate Worse Than Death, as she ends up.
 * Note, one of said minions was her son! Which makes it fitting that Just shows that even when you try to make an imported version of Grandienne, you still get a monstrous bitch.
 * The newest season of the franchise, Power Rangers Samurai, despite being Lighter and Softer than RPM, has two Monsters:
 * Serrator. In "Broken Dreams", we find out he was the one who cursed Dayu and Deker, by tricking Dayu into becoming Nighlok: he said that he would restore Deker in exchange of Dayu becoming a Nighlok, and after she accepts, Serrator reveals that he made Deker half-human and half-Nighlok. Dayu realized that Serrator tricked her and he laughed at her misery. This is what made Dayu a miserable and tormented person. Mia, after seeing this, feels sorry for Dayu and Deker. Also, unlike usual Deal With the Devil examples, it is Serrator who came to Dayu and probably did that when he heard Dayu's call for help and wanted to ruin her life and screw her and Deker's lives, and usually, in deals, The Devil tells what the person has to sacrifice or what he will do to that person, but Serrator didn't tell Dayu about what would happen to Deker. And in his official debut episode, "Something Fishy" from Super Samurai, he destroyed an entire mooger army to show his power to Master Xandred. And in "The Tengen Gate", he was referred to as "The Nighlok King". And he did all of this in only small amounts of episodes.
 * Master Xandred qualifies too. When he isn't drinking his medicine and yelling at people, he shows how evil he can be, being the Big Bad and all. He treats his followers horribly, threatening to kill Octoroo at one point, attempts to kill Deker because he was meddling in his affairs, and his plan revolves around killing Jayden. Also, unlike Octoroo, who sends Nighloks to cause misery, Master Xandred summons an army of moogers to cause meaningless chaos in the human world and destroy everything. In episodes "Broken Dreams" and "Test of the Leader", we see that his moogers destroy entire buildings, meaning that he is responsible for hundreds of deaths of innocent humans. He brutally punishes Arachnitor when he tried to usurp him by mutating him into a mindless slave. He also ruined Dayu's harmonium and attempted to erase her memory. She even says "I knew you were evil, but this..." It seems that Xandred's cruelty truly knows no bounds.
 * Mesogog from Power Rangers Dino Thunder. Despite having the sympathetic Anton Mercer, Mesogog is the evil alter ego who is determined to separate from Anton. Now, for his atrociousness: he lied to Trent (White Ranger) when he made the trade for the Dino Gems when he said he would give Anton (who he had separated from) back, then he tries to kill them. To power his machine, he takes the power from his right hand man Elsa when she points out he needed a power source to give it a boost to start it. He Mind Rapes his henchmen when they fall behind or fail or just to keep them in line, and he uses Mind Rape on his own minions more than on his enemies. And the fact that his master plan is to bring about a new Dino age. If you think about it, that would mean countless people would lose their lives.
 * What makes Mesogog even more terrifying is that he is completely emotionless. He does all those atrocities and feels absolutely nothing. And that voice: he didn't even raise it ONCE. And when he laughs, which is rarely, it is enough to make you shiver.