When it comes to weird creatures all gathered together, the cantina from Star Wars: Episode IV - A New Hope set a high bar right from the get-go. Yet Jabba's palace from Star Wars: Episode VI - Return of the Jedi may have it beat; from the pig-like Gamorrean guards to the long-lipped Pa'lowick, this place held a mix of the strangest scum and villainy to be found in the Star Wars galaxy. And strangest of all was the B'omarr monks, who used transplanted brains to control their creepy robotic spider bodies.

As C-3PO and R2-D2 enter Jabba's palace, a large metallic spider droid crawls in the background. They can even be seen during the more recent The Book of Boba Fett, as one of these B'omarr monks scuttle around outside the palace. They use six spindly legs to move while holding a strange jar at the front and a bulbous body at the back -- reminiscent of a black widow spider.

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The Mysterious Monks Of Tatooine

Long before the events of the Skywalker Saga, the B'omarr monks were a religious order spread across the galaxy. Jabba's palace was once one of their monasteries, and another is seen on the planet Teth during Star Wars: The Clone Wars. However, by the time they are discovered in the movies, smugglers and crime lords had taken over and claimed the monks' home as their own.

Yet the B'omarr monks were left largely unaffected by these hostile takeovers as they had moved on to the next stage of their being. They believed that to achieve full enlightenment, they needed to separate themselves from all forms of physical sensation. And so, they discovered a way to transplant their brains into jars of nutrients and attached these jars to robotic spider bodies that they could control with their minds.

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Jabba and the B'omarr Monks

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With Jabba claiming their palace as his own, he could've easily had the monks executed, yet watching them roam around amused him, so he let them live freely. He even left one of their sacred locations untouched -- the catacombs. Here, beneath Jabba's palace, numerous brain-filled jars sat motionless with no robotic body to control, and there they stayed for years to come.

After Jabba's death at the hands of Princess Leia, the palace was abandoned and the monks once again had control. Although, this didn't last long, as Jabba's servant Bib Fortuna was in control at the start of The Book of Boba Fett, and soon Boba himself took over the monastery. But at least from the ones seen roaming around during the series, it seems they were left unharmed.

So while Star Wars is no stranger to creepy critters, the B'omarr monks may be the creepiest of all. Not only are their arachnoid appearance and hanging brains eerie, but they also delve into the world of body and mind modification. Most robotically enhanced creatures have mechanical limbs or organs, whereas the B'omarr monks have shown it's possible to remove an entire brain and keep it functioning -- something that would be a horrifying technology in the wrong hands.