Alex

Alex (also known as Alex the Lion, or Alakay from his parents) is the main protagonist of Madagascar, Madagascar: Escape 2 Africa, and Madagascar 3: Europe's Most Wanted and a minor character of The Penguins of Madagascar series. He is the king of New York, Marty's, Gloria', and Melman's best friend, and Zuba's and Florrie's son (as revealed in Madagascar: Escape 2 Africa). He and Marty, Melman, and Gloria are now part of a circus family since Madagascar 3. He also appears in the Madagascar video game. In all of the media, he is voiced by Ben Stiller as an adult, while in the second film, as a cub, he is voiced by both Declan Swift and Quinn Dempsey-Stiller (Ben's real-life then-toddler son).

Background
Alex, formerly named Alakay, was born in Africa, his father is Zuba, the alpha lion of his pride, his father tried to teach him how to be a hunter, although Alex showed more interest in dancing. When Makunga, the rival of Zuba, tried to take him out of his place as the alpha lion, Alex was trapped by a group of human hunters who had tamed the little lion. Zuba tried to rescue Alex but couldn't. Alex was in a crate and floated to New York City where he was taken in by the Central Park Zoo and befriended Marty, Melman, and Gloria and grew up together in the zoo.