Ice King

Ice King is the recurring antagonist throughout the course of the series, trapping princesses and forcing them to marry him. As his name suggests, Ice King is also his title, announcing himself as "King of Ice." He rules the Ice Kingdom.

Appearance
Ice King is a short blue old man with unusually tiny fingers and a long pointy nose. He wears a dark blue tunic and has a large beard which covers most of his body. Though the robe gives him the appearance of a larger man, Ice King's body is actually very withered and skinny. Ice King is seen most of the time with a jeweled crown on his head. Without the crown on, it is revealed that he has a small length of white hair on the top of his head. He does not wear shoes. He has skinny blue feet.

Nice King
Nice King is the beardless alter ego of the Ice King, who appears in "Loyalty to the King". The reason for his existence was the Ice King choosing to shave his beard thinking it would make him more attractive to princesses after several failures to capture them. When going out in public in his beardless form, a misinterpretation by Slime Princess when introducing himself lead to him being referred to as a "nice king", which ultimately lead to the princesses trying to get together with him.

Horse
In "The Eyes", Ice King tries to spy on Finn and Jake disguised as a creepy horse. The horse has a very unhorse-like face with constantly-staring eyes and a protruding tongue. Its seemingly blank expression leads Jake to suspect it has a case of "poo brain." When Finn finally kicks him, Ice King pops out of the inflatable horse costume. It may be a reference to Kate Beaton's Fat Pony.

Personality
Ice King is usually portrayed as grumpy and short-tempered. A genuinely lonely character, Ice King spends most of his time kidnapping and imprisoning the various princesses of Ooo, in hopes of someday marrying one. Due to his poor social skills and arrogant nature, Ice King is unable to woo any of his prisoners and has learned to settle for a forced marriage instead of the loving relationship he craves. With no companions or friends outside of Gunter, his other penguin guards, and numerous ice creatures, Ice King is continuously eager to spend time with anyone who will tolerate his company, including his archenemies Finn and Jake. In "The Eyes" he takes on the disguise of a horse to spy on Finn and Jake in an effort to learn how to be happy, but fails miserably.

In short, Ice King's personality is best described by the Cosmic Owl in "Prisoners of Love": "Hoo! You're a Sociopath."

He isn't really liked by Finn and Jake,but in the episode "When Wedding Bells Thaw" Finn and Jake become a little more accepting of him, shown when Finn said, "I'm kinda happy for him."

It seems that the Ice King will steal any girl as long as she has the word "Princess" in her name. This is shown in the episode "The Chamber of Frozen Blades", where he steals Doctor Princess, even though it's implied she is not a real princess.

Abilities
When Ice King is wearing his magic crown, it gives him the power to control all forms of ice and snow. This includes, but is not limited to, throwing ice lightning, moving ice with telekinesis, creating living manifestations of ice, flash freezing his enemies, and the ability to onset wintry weather on cue. In "What Have You Done?", it is revealed that the crown was infused with stolen powers. His beard is apparently animated, operating much like a limb with partial shape-changing abilities, which he can wield in close combat. His beard also forms tiny wings that allow him to fly, although he must be wearing both his beard and crown to fly. He's a formidable foe, and while easily duped, he has proven capable of defeating Finn and Jake in a head-on fight.

Ice King can also play the drums, though with debatable skill, and on a drumset with "#1 Babe" across the front. In "The Chamber of Frozen Blades" the Ice King is shown to have studied the ice ninja art of fridjitzu.

Quotes
See Ice King/Quotes

Episodes Featured

 * Prisoners of Love
 * Ricardio the Heart Guy
 * Evicted! (cameo)
 * What is Life?
 * When Wedding Bells Thaw
 * What Have You Done?
 * It Came from the Nightosphere
 * The Eyes
 * Loyalty to the King
 * The Chamber of Frozen Blades
 * Mortal Recoil

Trivia

 * In the series, Ice King is played by voice actor Tom Kenny, whose credits include Heffer Wolfe on Rocko's Modern Life, Starscream in Transformers Animated, and Spongebob on Spongebob Squarepants. In the pilot, however, he was voiced by John Kassir, whose claim to fame is voicing the Crypt Keeper.
 * John Kassir also did the voice of Kefka in "Dissidia: Final Fantasy"
 * He always has a pair of underwear on the floor of his lair.
 * In the episode "Prisoners of Love," Ice King was able to play the drums and keyboard.
 * Ice King has a tattoo of a penguin on his butt, as seen in the episode "Prisoners of Love" during his dream sequence.
 * The Ice King seems to be chubby originally in that episode. Either that or it was only when Ice King is in his Imagination Zone.
 * Ice King's favorite component of trail mix are the yogurt chips.
 * The Fire Count, ruler of the Fire Kingdom, could have been related to the Ice King or an older version of him, since they look alike, and the Fire Count stole a princess, the Cotton Candy Princess (who might have been a relative of Princess Bubblegum).
 * In the episode "When Wedding Bells Thaw" Ice King, without realizing it, marries Jake. It is assumed that soon after the two were divorced.
 * Although Ice King seems to have nothing but disdain for Finn and Jake, he reveals in the episode "The Eyes", that he is actually jealous of the duo for their ability to be happy.
 * Ice King seems to only take a liking to princesses; it is unknown whether he likes all girls or just princesses.
 * Ice King's crown has red jewels, however in "What Have You Done?," he has pink ones.
 * Ice King has a computer which he uses to play video games, as seen in "What is Life?" and to make rudimentary drawings of himself with princesses, seen in "The Chamber of Frozen Blades".
 * On New Year's Eve 2010, there was an Adventure Time marathon, and it featured bumpers with the Ice King.
 * According to Natasha's formspring, the Ice King's Spieces is Wizard.