Laputa will live! I will return it to life! Laputa's power is the dream of all mankind!
~ Colonel Muska

Colonel Muska (real name: Romuska Palo Ur Laputa) is the main antagonist of the 1986 animated Studio Ghibli film, Castle in the Sky.

He is a government agent who wishes to find and control the lost city of Laputa, in order to take power over it and rule the world.

He was voiced by Mark Hamill in the English Disney version, who is famous for playing Luke Skywalker in Star Wars, and is also well-known for doing villains such as The Joker. In the Japanese version, he is voiced by Minori Terada, who won a Mainichi Film Award for Best Actor in The Human Bullet.


In the beginning of the film, Muska and his men have kidnapped Sheeta and are holding her captive in an airship. Muska has taken her volucite/aetherium crystal necklace. When Dola and her gang attack the airship hoping to get the crystal for themselves, Sheeta takes advantage of the confusion and knocks out Muska by hitting him over the head with a bottle. She takes the crystal back from him and escapes.

Throughout the film, Muska pursues Sheeta and her crystal, which can show Muska the way to Laputa and allow him to conquer it. Even though Muska is also descended from Laputan royalty, the crystal shocks him when it is activated and he tries to touch it, so he must have Sheeta's cooperation to use it.  He then tells Sheeta that they will be alone together for a long time, hinting that he plans to use her to restart the Laputian royal family.

At first, Muska seems to be working for the government in cooperation with its army, but ultimately, he proves that he is only interested in seizing Laputa for himself. When he corners them, Sheeta and Pazu use the crystal and a spell to destroy Laputa rather than let Muska take control of it. The light of Sheeta's crystal, combined with that of the giant volucite/aetherium crystal in the roots of Laputa's giant tree, blinds Muska, and he stumbles away as Laputa begins to fall apart. When almost all of the human-made structures on Laputa fall into the sea, Muska can be seen falling along with many of the Laputan robots. It can be presumed that Muska was either killed during the destruction of the Laputan ruins, or drowned after he fell.


As a descendant of Laputa's royal line, Colonel Muska believes he is entitled to rule Laputa and use it as a powerful weapon to secure control over the Earth. Unlike Dola and her gang, Muska is uninterested in the treasures of Laputa; he wants to find the island for the power it will give him.

Muska is duplicitous and will turn on his allies once he has used them to attain his goals. At first, he seems to treat Sheeta well, offering her fine clothes and acting somewhat kindly toward her. However, his true objective is to get the volucite/aetherium crystal belonging to Sheeta and, when he realizes that only she can use it, to force Sheeta to take control of Laputa for him. When Sheeta continues to defy him, Muska reveals his ruthlessness: he kidnaps Sheeta twice, threatens Pazu to force Sheeta to cooperate with him, and shoots off Sheeta's braids in an attempt to frighten her into submission. Muska also betrays General Muoro and the army, then even the other government agents when he no longer needs their assistance.


We'll get what we want, but it will take time.
~ Colonel Muska
They simply don't understand: It is useless to fight me.
~ Colonel Muska
My Eyes! I can't see! No... NO!
~ Muska's last words



  • He bears a striking resemblance to Jean-François from the game Rhythm Thief and the Emperor's Treasure, Vidocq from the game Doctor Lautrec and the Forgotten Knights and Professor Desmond Sycamore from the game Professor Layton and the Azran Legacy: All four of them are male, megalomaniac and well-dressed anime characters with glasses, who use firearms and are (as well as female protagonists of their stories) linked to ancient, advanced civilizations, whose legacies (in all four cases flying castles) they want to achieve.
    • Like Jean-François, he wears a jabot and uses antique robots to achieve his goal.
    • Like Vidocq, he wants to rule the world and dies at the end of the story by the power he wanted to achieve.
    • Like Desmond Sycamore (Jean Descole) whose theme music resembles the one of Castle in the Sky, he travels in an airship.
  • Muska is also similar to the following villains:
    • Kent Mansley from The Iron Giant:
      • Both are government agents with the military at their disposal.
      • Both are scheming and ambitious.
      • They investigate unknown phenomena and keep their motives hidden until the midpoint of the film. They also hold the protagonist hostage.
    • Lyle Tiberius Rourke from Atlantis: The Lost Empire:
      • They accompany the protagonist on a mission to find an ancient civilization while keeping their true motives (and nature) hidden until the midpoint of the film. After revealing their hidden agendas, they lose their sanity and battle the protagonists in the climax, only to be killed rather gruesomely.
      • They have armies of soldiers at their disposal, and an officer who follows their every command, but betray them in the end.
      • Both are in the military and hold high ranks.
      • They are Pure Evil.
    • Mitsuo Yamaki from Digimon Tamers.
      • Both are government agents with the military and technology at their disposal.
      • Both wear business suits and dark sunglasses.
      • Both have an antagonistic relationship with the kid heroes.
      • Both investigate unknown phenomena that they tried to use their technology against it.
    • Miles Quaritch from Avatar.
      • Both hold the rank of colonel.
      • They're friendly with the protagonists at first, but eventually became their enemy when their hidden agendas have been revealed.
      • Both have access to unlimited technology.
      • Both are killed in the end.
    • Fire Lord Ozai from Avatar: The Last Airbender.
      • They are voiced by Mark Hamill.
      • They are God Wannabes and also Pure Evil.
      • They manipulate everyone around them to get what they want, and then dispose of them when they're no longer useful.
    • Vic Deakins from Broken Arrow.
      • At first, they're friendly with the protagonists but eventually betrayed them.
      • They searched for the very weapons they plotted to use in their schemes.
      • They are Pure Evil.
      • At one point, they killed one of their own subordinates for being non-cooperative.
      • They are killed in the end by the very weapons they used the world.
  • He is easily the most evil Studio Ghibli villain.