Alex enjoys his life at the zoo and has plenty of friends and is surprised when hearing Marty's wish to leave and live in the wild (or run free in Connecticut as stated in the movie).
Realizing the consequences brought upon by his impulsive actions, such as sacrificing his and the other's lives at the Zoo (the one safe place they called home) and the misfortune he caused his best friend, Marty comes to truly regret his birthday wish.
Gloria is a female hippopotamus who resided in the Central Park Zoo as an attraction, all the while being good friends with Alex, Marty, Melman, and becoming the latter's girlfriend as of Madagascar: Escape 2 Africa.
Realizing that she loves Melman back, she stops him from sacrificing himself into the volcano, even saying "It's crazy to think that I had to go halfway around the world to find out that the perfect guy for me lived right next door..." and then joins the other animals in rescuing Alex from Nana.
With Phil dressed as the "King of Versailles," they are able to amass a fortune of jewels, diamonds and gold and plan to buy an aircraft to pick up the "hippies" (Alex, Marty, Gloria, and Melman) in Africa and return to New York.
Skipper has mentioned that there used to be two more penguins (Manfredi and Johnson, named for two ill-fated characters in the World War II prisoner-of-war saga Stalag 17) in addition to himself and the other three; and these claims have never been adequately explained.
He seems to also spout nearly or completely nonsensical words, such as, "The moo cow may have a chocolate marshmallow", or "I'll be a bicycle cream cone", whenever either hit incredibly hard or shocked severely.
He is similar in physical features to the other penguins in the movies, but he has a tuft of feathers shaped like a mohawk and a scar of unknown origin on his left cheek in the television series, which makes him easier to distinguish, particularly from Skipper.
He is also insanely skilled with knives and bladed objects, able to make sashimi or carve a Christmas tree from ice in a matter of seconds and destroy bowling pin dummies with a chainsaw while blindfolded.
In a way, he's much more childish, enjoying "Lunacorns" (pony dolls based on a show that teaches good morals and friendship) and often suggesting much nicer plans (such as asking for something instead of breaking into a habitat or simply telling the truth to others.)
He was overprotective of the egg in the episode "Paternal Egg-Stinct", though given how his team mates were treating it (Skipper put it through a dangerous obstacle course, Kowalski tried shock treatments to increase its intelligence, and Rico was flying it with a hang glider), this was rational.
In Madagascar: Escape 2 Africa, Julien, along with Maurice and Mort, accompany Alex, Marty, Gloria and Melman to New York on the plane built by the penguins while leaving Stevie in charge until the day he returns.
[citation needed] Mort succeeds in attaching himself to the outside of the plane, where he is seen by Alex (parodying a scene of The Twilight Zone's episode Nightmare at 20,000 feet), before falling into the ocean shortly before it crashed.
Alex confronts Vitaly and reminds the tiger of his love of performing, while suggesting he uses hair conditioner as a safer lubricant before regaining his courage to jump through the hoop from all that time ago.
Nana is featured in The Madagascar Penguins in a Christmas Caper, where she proves that there are times when she is shown to be not only aggressive with animals, but with also people, like when she destroys random merchandise at a kiosk while shopping for her dog, then demands to purchase Private in a very rude tone, when she refuses to pay the taxi driver her fare, when she tells her doorman to "buzz off" and then punches him in the face for no reason, and even when she does not hold the elevator for Skipper, Kowalski, and Rico.
Makunga (voiced by Alec Baldwin in the film and John Cygan in the video game) is a male lion with a large black mane styled in a pompadour and has green eyes.
In "Otter Things Have Happened", the penguins invented a machine that is able to locate anyone's ideal match at a moment's notice; the birds misread the signal her saliva sample gave and present her with Fred the Squirrel, upsetting Julien who kidnaps the little guy.
Joey (voiced by James Patrick Stuart) is a bad-tempered and hostile Australian-accented red kangaroo that always refers to himself in the third person who loves beating up anyone who steps foot in his habitat, especially Skipper and Julien.
During "Huffin & Puffin", he appeared in New York, initially apparently wanting to make peace with Skipper, before his true agenda was revealed to be his attempt to take control of the Penguins' lair for revenge.
After Blowhole reveals his plan to activate a "Ring of Fire" that he built in the North Pole to flood the world, Mort appears from the lair's skylight and frees the penguins after crashing into a control panel.
They served as thuggish bodyguards for Maurice, they have been seen displaying softer sides upon other occasions, such as when they looked after Mort in "The Penguin Stays in the Picture" while a photographer was there as an unrequested favor to Private, who wanted to be on the cover of the zoo brochure.
When given more of a role, he often appears to have little-to-no patience for any animal that provokes him, usually responding with threats, such as when a truth-telling Private nearly revealed a secret about him in the "Truth Ache" episode involving a "vacation" in Tijuana.
In this episode, she began pampering Maurice (thinking he was a male baboon after he got most of his tail fur ripped off, got red paint on his bottom, and got Commissioner McSlade's toupee stuck on his head making Julien jealous.
After the penguins and Parker follow Doris to Seaville, they get to Francis' exhibit where it is revealed he is none other than Dr. Blowhole, who has forgotten who he really is and thinks he's Flippy because of his memories being wiped out and is now happily performing tricks for people.
When he was initially transferred to the zoo in "The Big Squeeze", the penguins suspected him of being the cause of the disappearance of the lemurs and Marlene, but his cage appeared inescapable; the only means of departure was a vent that Savio could have used when unfed but would have been unable to access when returning.
Savio returned as an enemy in "All Tied Up with a Boa", intending to eat the penguins, the lemurs, and Marlene in revenge for their previous defeat- subsequently intending to regurgitate them and eat them in reverse order to his previous consumption- after immobilising Burt by sending a mouse to the zoo to trick him into running into a wall in panic, but Julien managed to escape by hiding in the popcorn machine and becoming covered in butter, his slippery form resulting in Savio becoming tied up in knots, covered in butter, and sent back to Hoboken.
The Amarillo Kid tells him of the Westchester Putter from Yabogeyhaha, a golden golf putting club which grants its wielder unbeatable power so that even the worst will become the greatest, and he desires to use it in a rematch against the Gophers to save himself.
It is later revealed that Frances never had the respect of her animals, whom she had simply sealed away under the ground and replaced with android look-alikes, all in an effort to meet her demanding standard for cleanliness and to get the attention of Parks Commissioner Pervis McSlade.
Todd (voiced by Kevin Michael Richardson in All Hail King Julien and JP Karliak in Madagascar: A Little Wild) is a common brown lemur who is the son of Tammy and Butterfish.
Mom-Bot (voiced by David Krumholtz) is a domineering Jewish-accented mother figure robot built by Timo who somewhat resembles an owl, and always offers to bake traditional Jewish cookies to people.