Title: Madagascar (franchise)
Content:  Madly Madagascar is a direct-to-DVD Valentine's Day-themed short film released on January 29, 2013, starring all the main characters from the Madagascar film series. The story appears to take place sometime between the second and third films. It featured many of the same voice actors as the films, including Ben Stiller, Chris Rock, David Schwimmer, and Jada Pinkett Smith. However, voice actor Danny Jacobs once again replaced Sacha Baron Cohen as the voice of the character King Julien. King Julien finds a love potion and starts selling it to members of the watering hole, making Marty attractive to all the animals. Skipper and the penguins organise a rescue mission for his doll girlfriend.
Title: Madagascar 3: Europe's Most Wanted
Content: Ben Stiller as Alex, a lion and Gia's love interest. ; Chris Rock as Marty, a zebra and Alex's best friend. ; David Schwimmer as Melman, a giraffe, another of Alex's friends and Gloria's love interest. ; Jada Pinkett Smith as Gloria, a hippopotamus, another of Alex's friends and Melman's love interest. ; Sacha Baron Cohen as King Julien XIII, a ring-tailed lemur who is the king of the lemurs in Madagascar ; Cedric the Entertainer as Maurice, an aye-aye and adviser of King Julien XIII ; Andy Richter as Mort, a Goodman's mouse lemur and a companion of King Julien XIII ; Tom McGrath as Skipper, a penguin who is the leader of all penguins and First Policeman. ; Frances McDormand as Captain Chantel DuBois, the leader of the Animal Control. ; Jessica Chastain as Gia, an Italian jaguar 
Title: List of Madagascar (franchise) characters
Content:  Princess Julienne (voiced by Anjelica Huston) is a ring-tailed lemur who is the mother King Julien XIII and the wife of Prince Barty. She is also the sister of Uncle King Julien. Like her husband, she does not care about her son at all, only that her constant supply of mango is provided on time, so she only shows up whenever there is any emergency in the kingdom that would threaten their income used to support their extravagant lifestyle. King Julien desperately wants their parents approval and love at first, even going as far as to hire Karl to kidnap them - however this turns into a real life-or-death situation due to Karl's betrayal. After his parents actually start to care about him, Julien gets annoyed by their constant doting and eventually gets them to leave.
Title: Madagascar (2005 film)
Content:  actor for Melman, they listened to Schwimmer's voice on Friends and, according to McGrath, thought that it "sounded really neat." ; Jada Pinkett Smith as Gloria, a strong, confident, but sweet hippopotamus. McGrath said that they found all these traits in Pinkett Smith's voice, when they listened to her. ; Sacha Baron Cohen as King Julien XIII, a ring-tailed lemur and the king of the lemurs. King Julien was initially only meant to be a "two-line" character until auditioning Baron Cohen improvised eight minutes of dialogue in an Indian accent. ; Cedric the Entertainer as Maurice, an aye-aye and King 
Title: List of Madagascar (franchise) characters
Content:  Karen (voiced by Ellie Kemper) is a blue-eyed white lemur who used to be King Julien's girlfriend.
Title: The Penguins of Madagascar
Content:  Some of the voice actors who voiced the characters in the films were unable to reprise their roles for the series. Chris Miller, who had voiced Kowalski, was replaced by Jeff Bennett, while Christopher Knights was replaced by James Patrick Stuart for the voice of Private. Danny Jacobs took over from Sacha Baron Cohen as the voice of King Julien, and Cedric the Entertainer's character, Maurice, is now voiced by Kevin Michael Richardson. Tom McGrath, John DiMaggio, Andy Richter and Conrad Vernon reprised their roles of Skipper, Rico, Mort, and Mason for the TV series, respectively. Other characters are voiced by the same actors who had voiced them in the films, while some characters, like Marlene and Alice the zookeeper, are new characters created especially for the series.
Title: All Hail King Julien
Content:  Karl, a fanaloka who also tried to kill Julien. ; David Krumholtz as Timo, a tenrec who invents things for King Julien. ; Betsy Sodaro as Xixi, a toucan who loves attention. ; Sarah Thyre as Dorothy, a mongoose lemur and Ted's wife. ; Debra Wilson as: ; Masikura, a psychic chameleon. ; Mary Ann, a fossa who dated Horst. ; Grey DeLisle as Pam Simonsworthington, a ring-tailed mongoose. ; David Koechner as Rob McTodd, a Coquerel's sifaka and King Julien's old friend. ; Kether Donohue as Brosalind, an aye-aye and Maurice's sister. ; Jeff Bennett as: ; Sage Moondancer, a dull indri. ; Hector, a black-and-white ruffed lemur who hates everybody and everything. ; Horst, a blue-eyed black lemur who used to date Mary Ann. ; Dr. S, a king cobra and mad scientist who practices “OUT OF A CAVE!”. 
Title: Madagascar (franchise)
Content:  The Penguins of Madagascar is a spin-off television series that aired on Nickelodeon. The series follows the adventures of the four penguins: Skipper (the leader of the group), Kowalski (the smartest), Rico (the craziest) and Private (the youngest) in New York City's Central Park Zoo. The penguins rule the roost at their Central Park habitat, carrying out secret missions in the heart of the city. At times, their missions beckon them to venture outside the zoo. King Julien, the primary antagonist, is also a resident of the zoo (though it is unknown how he, Maurice, and Mort got there) and the penguins must compete against him to maintain order in the zoo. While Tom McGrath, John DiMaggio, Conrad Vernon and Andy Richter reprised their roles as Skipper, Rico, Mason and Mort respectively, Jeff Bennett replaced Chris Miller as Kowalski, James Patrick Stuart replaced Christopher Knights as Private, Danny Jacobs replaced Sacha Baron Cohen as Julien and Kevin Michael Richardson replaced Cedric the Entertainer as Maurice. The series also features a new character, Marlene, an otter voiced by Nicole Sullivan.
Title: Oreste Baldini
Content: King Julien XIII in Madagascar ; King Julien XIII in Madagascar: Escape 2 Africa ; King Julien XIII in Madagascar 3: Europe's Most Wanted ; King Julien XIII in The Penguins of Madagascar ; King Julien XIII in Penguins of Madagascar (movie) ; Flint Lockwood in Cloudy with a Chance of Meatballs ; Flint Lockwood in Cloudy with a Chance of Meatballs 2 ; Crane in Kung Fu Panda 3 ; Shaggy Rogers in Scooby-Doo (since 2002) ; Sideshow Mel in The Simpsons (seasons 2-5, 18+) ; Sideshow Mel in The Simpsons Movie ; Despereaux in The Tale of Despereaux ; Quackerjack in Darkwing Duck ; Quackerjack in DuckTales ; Various 
Title: Madagascar (franchise)
Content:  Madagascar is a 2005 computer animated comedy film and the first film in the series. Directed by Eric Darnell and Tom McGrath, the film tells the story of four Central Park Zoo animals: Alex the lion (Ben Stiller), Marty the zebra (Chris Rock), Melman the giraffe (David Schwimmer) and Gloria the hippo (Jada Pinkett Smith). These animals have spent their lives in comfortable captivity and are unexpectedly shipwrecked on the island of Madagascar. The film was a commercial success, grossing over $532 million worldwide.

Question: who plays king julian madagascar?
Answer: Sacha Baron Cohen.