When the Penguins and the Chimps leave for Monte Carlo, King Julien, Mort, and Maurice stay in Africa with Alex and the gang to wait for their return.

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. Julien's boombox runs out of power when it comes to the ceremonial dance that will have the precipitation god Kevin to bring rain. Julien teams up with Timo, a tenrec scientist enlisted by the king to automate everything in the kingdom after he managed to get Julien's boombox working after it ran out of battery power. The lemurs start to get hooked on science much to the dismay of Masikura.

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. As the show progresses, he steadily becomes less self centered. While in the first season his concerns were more geared towards his peoples' perception of him (as seen in Poll Position and The Really Really Big Lie), when the series progresses, he's shown to care more about the happiness and safety of his people than himself. White and red cloth head wear with a box (more like a sultan of Arabian countries) depicted from the middle parts of Madagascar: Escape 2 Africa and Madly Madagascar. 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. During Xixi's "Gorch Watch" where fruit must be thrown into its cave to appease it, Julien, Maurice, and Clover enter the cave and rescue Doc Sugarfoot, a charming old lemur who was trapped inside after his tail was pinned down while hiding from the Foosa years earlier. Julien then takes him on as part of his royal counsel. Soon, Doc Sugarfoot challenges Julien to a popularity-based election where the most popular lemur gets to be king. This proves to be bad when Doc Sugarfoot is revealed to be King Julien the Terrible, a lemur who ruled with an iron fist before a rebellion stopped his reign of terror.

King Julien sparks a fashion frenzy when he turns a box of diapers into the coolest styles the kingdom has ever seen upon being told about them by Xixi. He soon ends up in a fashion war with Dorothy and Ted over the diaper distributions. Julien becomes jealous when Mort is repeatedly abducted by aliens. Julien plans to make the aliens abduct him instead. Clover and Sage are getting married, but when Julien throws a bachelor party and accidentally loses the groom-to-be, he has Timo and Dr. S. build a Franken-groom to stand in at the wedding.King Julien is to posses fabulous leadership qualities and has the ability to be a great leader. In All Hail King Julien: Exiled, he fights hardly to get his kingdom and shows the great leader that he hides underneath his eccentric and fun character. Even throughout the All Hail King Julien Netflix series, he shows great kingly characters and the ability that he posses to be a stupendous leader. To the audience's dismay, such heroic and leadership qualities are not portrayed in other TV Series or in the films of the Madagascar Franchise. After King Julien the Terrible gained popularity amongst the lemurs as a wise and old lemur, King Julien decided to challenge him to an election where the winner gets to become king. It also is shown that Julien gains a super-lemur level of strength if he gets mad visible when in Miracle on Ice, Julien spanked and humiliated the Rat King, after one of his henchmen touched Julien's feet; in " Happy King Julien Day!", Maurice claims that when the entire island didn't celebrate, Julien violently caned everyone who forgot his self-proclaimed holiday. Despite being a good guy, his stupidity can make him obliviously act as an antagonist towards the Penguins in some episodes and usually gets his punishment at the end when that happens.