With Julien's help, Karl faces off against his older brother, who wants to replace all of Madagascar's tea stands with Brüs by Bruce coffee kiosks.

Not much is known about his young life, however, it was said that long ago when he was King of Madagascar, he ruled the kingdom with fear and intimidation, forcing everyone to do hard labor, and nearly caused the extinction of the lemur species (and possibly other animals as well). He shut down the schools and revamped the school system, teaching the kingdom things he wants them to be taught, especially in subjects like history, where he altered and revised it to his advantage.

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Julien finds a bag of coffee beans in the Cove of Wonders and fishes it out with Mort's help. Thinking that they are a gift from the sea gods, Julien gets the entire lemur community hooked on caffeine. What Julien doesn't know is that this is all a plan by Karl to bring the lemur kingdom to its knees. King Julien clones himself but things take a turn for the worse when Mort wants his "very own King Julien", and accidentally unleashes Morticus Khan, an evil warlord, and his army of Mort clones.

King Julien been carried by Willie, probably Ted and Dorothy in Madagascar 1. " You can be anything you want if you dream hard enough!" ~King Julien [source] In the episode Right Hand Man, Clemson (the new lemur who becomes his right-hand man) intends to betray him and take over as king. Julien appears regularly, often noisily and unintentionally annoying Skipper, "borrowing" things from their neighbors and pretty much everyone. He is the self-proclaimed "King of the Zoo" no doubt due to his former king status on Madagascar. Only Mort and Maurice truly believe and respect him as their king, everyone else just humors him, showing up to his royal decrees. King Julien takes on the role of King of the Lemurs of Madagascar after his uncle, King Julien XII gives up being king, hands him the crown and leaves the kingdom. One of King Julien's best friends, his body guard and a member of King Julien's Royal Entourage. Their history is not known, whether they were friends since their childhood. But, it is to be noted that they probably met each other when they were both in their youth since they seemed to know each other well even in the beginning of the series. It is seen that King Julien gives a special place to Clover in his life and heart, cares for her, trusts her and love her. In All Hail King Julien, it is seen when King Julien and Clover engage themselves in working together, both always trying to ensure each other are safe. They have had problems, specially in the beginning, when Clover was too paranoid and was trying to restrict King Julien enjoying himself. But, as the series progressed, it could be observed that their relationship grew more stronger and inseparable as they both improved themselves along the series: Clover grew to be less paranoid, King Julien learnt to take responsibilities and reduced taking unwanted risks.In " Haunted Habitat," he mentioned that he had a dream that he was "the last mammal on Earth". Mort was just happy to be in the dream despite the fact that he was "roadkill" in it. Throughout the episodes, King Julien grew into a better king, as shown when he nearly sacrifices himself to save the kingdom several times, gives the kingdom a hospital, defeats his enemies, and helps defend his kingdom with the help from his royal circle, until the episode " Un-King Me" where he loses his throne to the mountain lemur king, Koto. Julien becomes jealous when Mort is repeatedly abducted by aliens. Julien plans to make the aliens abduct him instead.

After setting out to claim the Moon for all lemur kind upon using a space pod found in Timo's area, King Julien and Maurice land in the desert part of Madagascar thinking they are on Mars. They come face-to-face with a Russian-speaking space chimpanzee named Stanislav as Timo plans to use Stanislav to perfect King Julien's next attempt to get to the Moon. Meanwhile, Clover is suspicious that the crocodiles might get to the Moon to plant their space laser there. In Tangled in the Web, King Julien and Marlene did their performance together The Penguins of Madagascar [ ] Mort Unbound -- Mort growing huge by an invention and being tired of being bullied and bossed around, but then letting Julien use him to get stuff from the other zoo animals. King Julien refusing to give Mort a single banana. When Mort was turned small, King Julien admitted it was his fault to prevent big Private from beating him up.King Julien and Maurice stunned at the sight of the shark's death while Mort was doing his signature laugh. King Julien and Maurice infiltrate a Foosa gladiator school ruled by Mary Ann. Jarsh-Jarsh switches Sage and Clover's bodies to make them face their fears. Mort looks for Hans who advises him he must form his own army.

introducing King Julien) Presenting your Royal Highness, the illustrious King Julien XIII, self proclaimed Lord of the Lemurs, etc., etc., hurray everybody. In All Hail King Julien series informations about King Julien's past appear, however most of them is contradictory. In his eponymous series, King Julien is more intelligent than in previous Madagascar media. However, not by much, he only appears smarter in comparison to his kingdom's citizens, who are too dumb to be left without a king. However, he does shows some wit in the series and is more tactful, clever and witty than his character in the films or other series. King Julien XII was able to rally and unite much of the kingdom and neighboring kingdoms War of the Beasts. King Julien and his team ride sharks to an island, who turns out to be inhabited by Stanislav and his fellow Russian space chimpanzees. Clover and Sage get a map that leads to the wisdom they seek. Mort hides in Junk Harbor. Mort (perhaps the most loyal after the scene in King Me) and Maurice are very loyal. Even though Maurice is a extremely loyal to King Julien in All Hail King Julien, who is to be one of his best friend, these are some examples where Maurice's character change:

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In Otter Things Have Happened he was horrified that the penguins made Marlene hook up with Fred and claimed himself as being Marlene's 'secret boyfriend'. He tried to make Fred battle him over her. Julien, Clover, Mort and Maurice become music sensations overnight, thanks to Timo's new invention, but the band breaks up over Julien and Clover's non-stop fighting. In his upcoming meeting with the cranky Nile crocodiles, King Julien plans to use a political body double to attend the meeting. As Clover recommends Magic Steve, King Julien goes with Sage Moondancer. When Sage Moondancer is injured sliding down the water slide, King Julien enlists Magic Steve as his body double to attend the meeting with the cranky Nile crocodiles in his place. Magic Steve has other plans as he plans to run King Julien's kingdom. King Julien learns from Xixi that 99% of the lemurs love him, so he makes it his mission to find and convert the one "hater" lemur.