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. His Ice Powers are stolen and are contained in his crown, and he is therefore powerless without it.

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. He also makes Finn and Jake his loyal "knights", making them interview the princesses for him to date.

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." However, this acceptance is quickly doused when Finn and Jake learn that the Ice King hypnotized his would-be wife. In the episode "What Have You Done? " He calls Finn his Bosom after they let him free from jail. Finn just lets him out after he finds out he did no recent crime around that time. Although after Finn's "death", Ice king howls in pain for ten seconds then drops his body on the ground. Finn refers to that gesture as mean and cruel.

It seems that the Ice King will steal any girl as long as she has the word "Princess" in her name (though he does back away from Princess Bubblegum after her age is reduced to that of a 13 year-old). This is shown in the episode "The Chamber of Frozen Blades ", where he steals Doctor Princess, even though she is not a real princess and that it is merely her surname. Ice King is shown as merely being bothersome to Finn and Jake more in the episode "The Eyes ," but Ice King has been shown to be able to cause them trouble throughout the episode "Prisoners of Love " and many others, and so proves to be one of their most re-occuring enemy throughout the series. But, Ice King takes up an protagonist side on Mortal Recoil, helping Finn and Jake by freezing Princess Bubblegum when she was controlled by The Lich.

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. Because of his quick temper and arguably slow whit, he isn't able to weild his powers as effectively as he should, but has proven himself capable of defeating Finn and Jake when amply provoked.

Ice King can also play the drums, though with debatable skill, and on a drumset with "#1 Babe" across the front. The set consists of a bass drum, a floor tom, a snare, two ride cymbals and a hi-hat. In "The Chamber of Frozen Blades" the Ice King is shown to have studied the Ice Ninja art of Fridjitzu, but because he doesn't practice this technique openly in battle, he isn't very good at it.

Ice King also possesses a power known as "Wizard Vision", where he can see strange phenomenon if and when it occurs. When in this mode, his eyes turn completely red, giving him something akin to infared vision. However, he really doesn't mention having this power because usually whenever he uses it, all he sees are a bunch of strange, freaky images that really make no sense. He notably used this power in "Mortal Recoil" when he witnessed The Lich take over the melted body of Princess Bubblegum.

Quotes
See Ice King/Quotes

Major Appearances

 * Prisoners of Love
 * Ricardio the Heart Guy
 * What is Life?
 * When Wedding Bells Thaw
 * What Have You Done?
 * The Eyes
 * Loyalty to the King
 * The Chamber of Frozen Blades
 * Mortal Folly
 * Mortal Recoil

Minor Appearances

 * Evicted!
 * It Came from the Nightosphere

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.
 * 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 a rival of some sort, 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 certain that soon after, the two were divorced.
 * The Ice King has a very short temper but calms very easily calms down afterwards.
 * His first ever close combat attack was his kick in "The Eyes".
 * 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 happiness.
 * 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 Species is Wizard.
 * Ice King is a character in FusionFall.
 * There are two types of Ice King tees in FusionFall.
 * His long nose is similar to that of a Goblin.
 * He has no friends (besides Penguins). In "What Have You Done?", he thinks Finn is a friend, but after Finn fakes his death, the Ice King loses interest quickly as if Finn had never died
 * His first ever attack (without magic) is his kick that he uses to hit the sword out of Finn's hand's.
 * He seem's to also hiss like Marceline in "The Eyes".
 * The others of his kind (wizards) seem to be Forest Wizard, Magic Man, Tree Witch, Witch, Bufo, Xergiok, Death, Old Wizard, and Finn and Jake (They lost their powers twice).
 * As seen in the episode "Chamber of Frozen Blades ", even though the Ice King has an Ice Ninja Manual, he is never seen using ice magic without his crown (though he does perfrom the 'Num Chucks' spell at the very end of the episode).
 * Even though the Ice King is Finn and Jake's main enemy, he has come to them for help on several occasions.
 * A person wearing an Ice King costume appeared in the series, "Regular Show" in the episode, "See You There", when Mordecai and Rigby drag Muscle Man out of the bathroom when he had a fake heart attack.
 * Ice King is known to carry many instruments in his lair. He most likely knows how play all of them since they were simple instruments.
 * There is a slight resemblance between Ice King and Spongebob, since Spongebob's laugh is the same as Ice King's laugh. It's most noticeable in "What Have You Done?". This is because they are voiced by the same person.
 * Ice King is very clumsy, as evidenced when he released Princess Bubblegum and she fell straight into The Lich 's well.
 * The Ice King is very persistent, as shown when he followed Finn and Jake around through both the back-to-back episodes "Mortal Folly " and "Mortal Recoil ".
 * Ice King doesn't think of himself as being old; just a wizard with crazy eye sight.
 * When he find out Princess Bubblegum is 13, he quickly loses interest in her.
 * As revealed on MrMuto's formspring, one of the gems on Ice King's crown provides the same effects as the magic gems used by Princess Bubblegum, protecting him from The Lich's mind control effects.
 * In the episode "The Chamber of Frozen Blades" the Ice King referres to him self as "Healthy as ten old men!", with that being said, the typical "old man" starting at 60 years old, and the King assumably at 600 years, 60x10=600.
 * In "Mortal Folly", he wrote "Princess Bubblegum" all over his arms and legs to show how serious he is about marring PB, but right next in "Mortal Recoil", when he lifted the skirt of the robe, there wasn't anything written.
 * He usually cast spells doing the sound design.
 * Ice King seems to have an obsession with ninjas.
 * Coincidentally, both episodes as of this point where the Ice King merely has a minor role both have Marceline as a major character.