"Zim, as a soldier, was full of weakness and I tried to get rid of it to help him realize his full potiental, he just couldn't cut it. As a Son, he was much more than a dissapointment as well as a shock. Not only did I not know he was my own flesh and blood, but he was also the end of all Irk and my DNA brought him to this universe. In an essence, I would've destroyed the empire if it wern't for one thing and one thing only, my tainted blood. - Kratoz's view on his son and himself

General Kratoz




48 (In Irk Years)
483 (In Earth Years)






3'0" (Teen Years)
3'11"(Later teens)
6'4" (Adult)


227 lbs (102 kg)


Pistol, Assault Rifle or any other military weaopon

Number of Planets conquered

Unknown, but Many (mostly destroyed)


Irken Empire
Havoc Corps

Voice Actor

Charlie Adler

General Kratoz is the main antagonist of the Invasion series (the sequel to Invader Zim) and the leader of the infamous Havoc Corps. Known also as the "beast of Irk" and the self proclaimed "prince of destruction", he is the father and genetic template of Zim, Kerrek and Daimoz. He is a general in the Irken army and a brilliant military strategist who embraced Irk's old warrior like herritage, which caused a little bit of friction between him and the Tallest.  Prior to Zim's banishment, he was in love with Tallest Miyuki (despite her status) and asked her to marry him (which she said yes). Several years prior to his son's unwitting rampage arcoss Irk, Zim accidently created a blob that killed Miyuki. Both these actions caused Kratoz to hate for Zim. Durring Zim's trail, he suggested he'd be executed for almost destroying Irk, but was enraged that he was banished instead. After his son's banishment, his hatred with the Tallest and the Control Brians increased only further for sparring Zim instead of killing him themselves. During the time when he came to Earth to kill Zim, Kratoz was surprisingly horrified at how unstable the human race. He also found out he was his son and his hatred faded away. After that, his mission had changed (much to the dismay of his soldiers) as he made wiping out humanity his number one priority, so the Earth can return to it's "former glory"


Kratoz looks very similar to his son Zim, but is taller (standing about 6'4"), more muscular (Unlike most Irkens) and weighs about 227 lbs. He is 48 Irk years old, wears an armored suit, has two scars on the right side of his face (one on his right eye, the other on his lip) and burns on the left (caused by his son). Underneath his armor are tattoos all over his body, showing how proud he is of his heritage. Height wise, he is only 7 inches shorter than the Tallest. He is about the same height as Professor Membrane.


Kratoz is vicious, bloodthirsty, cold-blooded, brutal and sadistic, even for an Irken (except Emperor Xeno). He is extremely proud of his heritage, but holds a strong animosity towards the Tallest for their cowardice, laziness and for making him a service drone when he was young (surprisingly he was short as a teenager, then grew when he was older). He also holds a stronger contempt for the Control Brains for having more control of the Empire than his own people do, something that his son grants in a different universe. He is also a hardened career soldier and a military genius, but at the same time a psychotic, ruthless, hard-headed, savage and mentally unstable individual with a very short temper and a sadistic sense of humor. He is also known to violently kill his own men for repeated failures (whether they are his own or their), disrespecting his authority in a very unprofessional manner and treason against the empire (much to the Tallest's dismay). His stubbornness often causes his ego and his pride to consume his judgment as he harbors a strong hatred for those that do not fear him (minus his subordinates, whom he's more positively inclined with) and is unwilling to accept defeat. Unlike most Irkens who simply conquer planets to simply be used for one purpose (such as  intergalactic video arcades and shopping malls ), Kratoz  prefers mindless destruction and wrecking havoc as he loves to destroy and obliterate the planets instead of conquering them. Despite being feared by all of Irk, he is surprisingly popular in the Empire and is considered a hero to some. Also unlike most Irkens, Kratoz doesn't judge others by height, but rather by strength, heart and skill (a sharp contrast to the Empire's philosophy). He is also power hungry as he wants to use absolute power to improve himself in order to physically become the most powerful Irken in all of history (despite his obvious mortality). Despite his ruthless, sadistic and violent behavior, he was originally more compassionate and sympathetic as he is shown to care for shorter Irkens (understanding that being a service drone is the worst thing that could happen to an Irken), was in love with Tallest Miyuki. He also held a lot of respect for the early humans (as he saw one die in an honorable manner) and when he returned to Earth to find Zim, he was disgusted with humanity's newfound behavior that he made destroying the human race his main priority with ironically losing all interest in killing Zim (even though they would still clash from time to time, competing on who would conquer Earth). When Zim unknowingly killed Miyuki, and later on almost destroyed Irk, Kratoz's dislike for Zim turned to complete hatred (which ironically faded after witnessing the human's unnatural behavior). These factors are what made Kratoz the monster he is today. As the series progresses, Kratoz became more obessed with fixing the Earth and killing humanity than killing Zim, infact after discovering the young Invader was his son, he started to slowly develop parental attachment twords him.

In the story "ZAGR", it is unknown if he actually exists or not.


Zim - His younger son and clone. Not knowing he had a son, Kratoz held a strong dislike for Zim and feared his unstable behavior since the day he was born. Though Zim on the other hand also did not know his father, but he originally idolized him (not knowing he was related to him), but started to fear him after Kratoz tried to kill him (his own son). After the death of Tallest Miyuki and the subsequent crimes Zim had obliviously committed Kratoz started to hate his son even more. During Zim's trail, Kratoz tesify against him and asked the tallest to execute him. When they refused and banished him, Kratoz's hatred with the Tallest only furthered. It was there after that, Kratoz found out Zim was his son, a fact that really horrified him to the point of self-hatred. Despite this, Kratoz's hatred for him rapidly disappeared after being disgusted at humanity's behavior and started to feel a sense of attachment twords his offspring as he could not bring himself to kill his son. However, Zim had proven to be such a terrible son that he did not believe Kratoz to be his father and would be willing to kill him. Due to his own desire to conquer Earth, he would often compete with his son on would be the one to take it over. Behavior wise, Kratoz displayed the same destructive, violent, sadistic and power hungry tendencies that made Zim dangerous. Despite the similarity, Kratoz has proven to be far more destructive, bloodthirsty, ruthless and sadistic than his son.

Kerrek - His second son and clone. He seems to hold Kerrek to a slightly higher respect than Zim, but disapproves of his son's lack of discipline and loyalty to the empire.

Tak - He seems to respect Tak as an invader, serving as a father-figure to her (In contrast with his relationship with Zim).

Will  - Kratoz is impressd with Will's sense of right and wrong. He asks the boy to join his side (firmly believing him and his father to the representation of what the human used to be and should've stay that way).

Max Virum - Kratoz respects Max for his skills as a soldier and sense of true humanity (unlike most humans). His respect for Max is such that he would ask him to join his side (which Max declines). 

Sergeant Hobo 678 - Kratoz's former mentor and friend. 678 respected Kratoz for being a capable leader as he managed to get his whole squad out alive without a scratch.

Bob the Service Drone - Bob is one of the only beings Kratoz actually felt and showed any real compassion for. Bob views Kratoz as a father figure and a leader that he could follow.

Dib - Kratoz considers Dib to be the very thing he wants out of a son. He respects his determination and intelligence. He also surprisingly feels sympathy for the human because of the way he's been treated. While in his human disguise, he often served as a sympathetic father figure to Dib and would go to great lenths to convince him to betray humanity and join his side.

Tallest Spork - Kratoz held no love for Spork, viewing him as arrogant and egotistical. Ever since the academy the two fought over Miyuki's feelings. Spork's death was the only action caused by Zim that Kratoz actually congratulated and praised on. He called his death "the only time Zim did actually something right" (Much to his son's comfort).

Professor Membrane - His relationship with Professor Membrane wasn't apparent until the scientist saw him without his makeup, causing the General to keep an eye. Even before that Kratoz held a strong contempt for the professor for being a neglectful father and not supporting his son. Ironically, the Proffesor tried to warn the skool that the Principal was an alien much like how Dib tried to warn about Zim, only to be shunned and laughed at. It was there that  the Professor started to realize his son was right about Zim and Aliens that he started to doubt his own intelligence. Due to Kratoz's sympathy for Dib, Membrane would often try to fight the general for his son's love.  Kratoz on the other hand (while holding nothing against Membrane) enjoys ruining his life, because if the whole world believes him to "crazy" then it would  likely avert suspicion. 

Skoodge - In contrast with the Tallest's dislike for him, Kratoz actually respects and praises Skoodge for being a successful Invader. He was disappointed that Skoodge sided with Zim instead of him.

Tallest Miyuki - One of the only individuals Kratoz actually showed any affection and love for. Despite his strained relationship with the Tallest, Kratoz Fell in love with Miyuki and asked her to merry him. Her death was one of the main reasons why Kratoz became the monster he is today. To this day, he still loved her and possibly took his anger out on other planets to satisfy his misery and bitterness towards his son

Daimoz - Possibly the only one of his three offspring he actually holds respect and pride for, due to her being more skilled and compandant. Much like his sons, Kratoz didn't know Daimoz was his daughter untill she told him that three children cloned instead of two as orginally thought. It was also there Kratoz found out that his sons and daughter were ironically also the offspring of his dead lover Tallest Miyuki, due to her resemblance.

Tallest Red: Despite his rocky relationship with the Tallest, he seems to respect and think more highly of Red for being a more competent leader than Purple. Red also respects Kratoz, but the general's destructive behavior often concerns him almost to the point of trying to keep an eye on him. Despite this, Kratoz and Red are still at odds with each other due to the Tallest's collaboration with the control brains.

Tallest Purple: In sharp contrast with his somewhat positive relationship with Red, Kratoz holds little to no respect to Purple, viewing him as a maggot and a weakling. Despite his towering stature, Purple is greatly terrified and intimidated by the general. 

Gaz - The two hate each other and would nothing more than to tear eachother apart. Kratoz greatly despises Gaz with a passion for refusing to fear him. Gaz on the other hand seeks vengeance against him. The reason for this is that Kratoz tried to strangle her to death, but failed after Gaz kicked him in chest (which really angered him). Gaz is the only one Kratoz hates more than Zim.

Nightmare Kratoz - Despite being the representation of Kratoz's dark side, Nightmare Kratoz actually feared him as the original Kratoz had proven to be even more ruthless and far more brutal than his more frightening counterpart.


Sometimes Kratoz will use genetic engineering or paranormal artifacts as a way to fulfill his dream of achieving aboustle power. There are only 2 episodes and 1 tv movie where Kratoz undergoes powerful transformations, only to lose such power due being foiled by his enemies. 4 of these transformations are dark or demonic in nature, while his Evolved form was the most insect like in appearance.

Evolved KratozEdit

Dark KratozEdit

Demon KratozEdit

Demon Kratoz Lv 2Edit

Demon Kratoz Lv 3Edit


" You sniveling little brat. Now you're going to pay! I will kill you, I WILL KILL YOU!." - Kratoz to Gaz.

"The Tallest are nothing more than mere maggots beneath my feet! They are all complete and utter waste of Irken Blood!" - Kratoz describing the Tallest.

"I am your father." Confessing to Zim.

"Come to Papa." - To a frighten Zim.

"Peace is a lie, might is truth! Strength is a king, War is a God! Political power and wealth are nothing compared to true Power and True Power is ABSOLUTE!"

"Though the stars are bright, suffocating in the blackness of outer space is a fate even worse than death. And after that all there is pitch black. Pure Darkness."

"Now my son, beg for forgiveness and I might give you a quick death." - Kratos as he holds his foot to Zim's head.

"(Laughing maniacally)Oh this is... Oh my, look at what i've created! What a stunning spectacle! Wow, it's beautiful! I don't believe IT! (Laughing). " Kratoz as he watches a planet get destroyed.

"I am the fear that haunts the hearts and minds of those who oppose me!  I am the beast that spreads terror and destruction across the universe! I am the darkness that burns out the light of the stars. I am the prince of destruction. I AM YOUR END!"

"This is all I could remember you by. In the blackness of the space, surround by the light of the starts. Forever young and beautiful. Don't worry my love, that monster of a son that took you from will learn that you what do on to others, they would do on to you. At least the dead don't suffer, but he he will suffer a slow and painful end before he dies at my hand." - Kratoz looking at a glob of Miyuki as he thinks about killing Zim.

"Why are you resisting?! Just suffer and DIE! THAT'S WHAT YOU DESERVE FOR DISGRACING YOUR HONOR, ZIM! NOW DIE!" - Kratos as he crushes Zim.


  • Kratoz is the only being in the universe that Zim fears the most (even more than the Tallest), as he has nightmares about his father.
  • Kratoz's armor resembles an Irken version of General Zod's armor from the film the Man of Steel.
  • Unlike Zim,Kratoz is also known to take a more personal, brutal and bloody pleasure in torturing his victems, using slow and painful methods.
  • Kratoz's name has a similar basis to Kratos, the name of the Protagonist of God of War. Kratos also means power and strength, fitting both his vicous and blood thirsty nature.
  • As much he hates Zim and the Tallest with every fiber in his body, he still hates the Control Brians  even more.
  • Unlike most Irkens, Kratoz is a clever master of disguise. Unlike Zim and Tak (who's uses a hologram), Kratoz uses makeup, a fake nose, fake ears, false teeth, and a lifelike wig to make him more look human. These features make the disguise look much more convincing than the typical Irken disguise, as even Zim and Dib are fooled by it as he apears to be actual human while wearing it.
  • His human disguise resembles Vegeta from Dragon Ball Z.
  • In sharp contrast with his relationship with his son, he respects Tak as not only an Invader, but also as a poteintal daughter like figure.
  • Despite Kratoz's hatred for Zim, deep down there was a small part of him that loves him as a son. This was shown at the final episode when he saw whe tries to kill Zim nemurous times, but later hesitated. He later began to believe the reason why Zim was soo destructive was because he didn't know he had a son, therefore making him unable to take the young Irken in under his command and wing.
  • Kratoz is one of the few very Irkens who hold a strong desire to raise a family (considering his desire to marry Miyuki).
  • Depite Zim being deemed the most destructive soldier in the history of ever, Kratoz has proven to be even more pleasurable in causing destruction and tormenting his enimies than his son. He has caused a lot more harm to other worlds than Zim ever could and is far more malevolent, ruthless and cold-blooded in his mission than Zim ever was.

  • Despite his love for Miyuki, his compassion for shorter Irkens and having sympathetic characteristics, Kratoz's blood thirsty behavior and brutal methods are often described as barbaric, even by Irken eyes. For example, he sadistically enjoys torturing and slaughtering his enemies in cold blood, relish in their suffering, is willing to kill civilians (with the exception of Irkens) if they get in the way of his mission. He also seem to enjoy causing harm on to others and seeing smoking ruins (Particularly ones he created) as he laughs whenever he causes destruction and sees his enemies suffer. Atrocities like this make him probably almost one of the most evil characters in the series as even Zim is horrified of his bahavior. Despite this, the reasons for his ruthlessness come from the grief of not being able to start the family he always wanted as well as losing the love of his life.

  • Kratoz seems to be more intelligent and physically athletic than most Irkens, due to his body frame, survival skills, his lack of comical moments and knowledge and understanding of humanity.

  • Unlike most Irkens, Kratoz requires little assistance in battle and is an adapt fighter.

◾Fans of Irken Empire wiki felt that Kratoz need more flaws to his character. Those were already there from the beginning, but wasn't written down yet due to enthusiasm of his creator. Some other elements were also controversial as well as out of character (such as the scrapped idea of Gaz and Mrs.Bitters fearing him). These traits changed to make Kratoz a little more appealing.

  • Kratoz also served as the protagonist of the prequel film trilogy, from his younger years to Zim's Rampage on Irk. All three films were set before Zim's exile to Foodcourtia as well as Kratoz's fall to vengeance.

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