Skipper (Lexy)

Skipper is the leader of the four (later five) penguins (presumably the oldest). Skipper was voiced by Tom McGrath in both film and TV series

Personality
Skipper displays a  hard-boiled, strict personality. Most people claim that he has no feelings and doesn't have a  fear. However, all o this is false as Skipper is, as ironic as it sounds, only human.

In "Needle Point" it is revealed Skipper has a fear of needles and is afraid of shots.

Early life
Skipper and his brothers, Rico and Kowalski, used to live in Antarctica with their parents. However, after seeing an abandoned egg rolling down the hill, SKipper defies the laws of natures and goes to rescue it. He is also assisted by Rico and Kowalski into saving the egg, which hatches to be Private. After realizing that they could not go back, they become Private's older brothers.

Kowalski
As his second in command, Kowalski is a respected penguin, but because of Kowalski's crazy murdering inventions, Skipper has his suspicions about anything Kowalski makes, but still tries to treat him equally and knows that he is a important member of their brotherhood and team.

Rico
Rico has the third rank, and despite being lower than Kowalski. Rico and  Skipper  seem to have a close relationship,(probably because they share a love of violence). Rico and Skipper have a best friend relationship, as Skipper is the older brother that makes sure the younger does not get in trouble (Skipper makes sure that Rico does not harm innocent people).Rico is the best in combat in the group and the second most emotional after Private. However, in the episode "Needle Point", Skipper shows the ability to take him down, along with Private and Kowalski singlehandedly, demonstrating that he may be inferior to the leader.

Private
Private and Skipper seem to have the closest relationship out of all the penguins. They have best brother relationship as well. Skipper helps Private become more and more experienced as he thinks of Private as naive and gulliable so Private would die more easily than the others. Ever since, Skipper, Kowalski, and Rico had decided to adopt Private as their little brother, Skipper treated Private differently, because he was a little bit younger then him and the others. But Skipper learns that Privates is a important member too. In the series, sometimes, apparently they have a kind father-son relationship.

Lexy
Skipper is protective of his younger sister, however, it could be because she is a girl.He notes in "The Hidden" that she is getting as tough and strong as Rico, Kowalski and himself, including Private. Sometimes she is like a daughter.

King Julien
rival/friend

Marlene
Friend/possible romantic interest

Mort
ally

Maurice
ally, one time enemy)

Dr. Blowhole
Arch enemy with Private, Rico, Kowalski and Lexy

Hans the Puffin
frenemy)

Dave
Enemy)

Classified, Eva, Coporal, and Short Fuse
Rivals, later allies