"Nature? Fire? Bah! Both are chaotic and difficult to control. Ice is structured, latticed, light as a feather, massive as a glacier. In ice, there is power!"
One Piece has Marine Admiral Aokiji, possessing the power of the Hie-Hie (Chill-Chill) Fruit. Aokiji's Devil fruit allows him to create, control, and transform into ice. His powers are such that he can freeze an entire chunk of ocean (complete with sea monster) with seemingly little effort and with a guarantee that it'll last one week. He's also all-but-immune to physical attack as, while they can shatter his icy body, he can immediately reform it.
More recently, Brook has managed to do this by channeling his soul through his sword, infusing the blade with the very cold of the underworld itself.
Code: Breaker: Yukihina's most common application of his power, though he seems to be able to control water in any form.
Reinforce Zwei of Lyrical Nanoha specializes in this element, in contrast to her rival, the fire-using Agito. Chrono's Storage Device, Durandal, is also optimized for ice magic.
Touya of Yu Yu Hakusho is a demon ninja with mastery over ice. When he went under Genkai for some Training from Hell, he became powerful enough to freeze an entire battlefield. Seiryuu, one of the Four Saint Beasts (And also, ironically, The Dragon to Big Bad Suzaku), also had ice powers, but he was a drop in the bucket compared to Touya.
There's also Yukina, actually an ice maiden.
Yukino Houjou of Gate Keepers, the immortal and ridiculously powerful user of the Gate of Ice and Snow.
Two in Bleach: Toshiro Hitsugaya (Hyourinmaru) and Rukia Kuchiki (Sode no Shirayuki). If the name of her Zanpakuto is indeed meaningful, the lieutenant of the 4th Squad, Isane Kotetsu, may be like this too (her Zanpakutou is Itegumo which means Frozen Cloud).
Cygnus Hyoga and Kraken Isaac from Saint Seiya, and so is their teacher Aquarius Camus (also, the Crystal Saint in the anime).
Extra fun: in the anime, the Crystal Saint explains to Hyoga how to manipulate temperature: slow down the electrons and stay away from the nucleus
Tokiya Mikagami in Flame of Recca has a lot of water based attacks, but that's mostly his low-level techniques. His high level techniques includes ice based attacks. On the other hand, his master Meguri Kyouza and his fellow Hyomon Ken practitioner Kai goes to the extreme and only uses ice.
Then again. It could be possible, at least with magic, but as absolute zero is the temperature at which all molecular movement stops, it would be pretty useless.
Grigori 03 from Psyren, and he's totally in denial about being Neku.
Urusei Yatsura had Queen Oyuki, who was a fairly nice person, aside from occasionally freezing everything around her in a huge block of ice.
Mannen from Prétear specializes in freezing things, with his element listed as "cold" — "water" is a separate element controlled by a different Knight.
The same listed trainers in Pokémon in the anime, as well as Ash's disobedient Snorunt in one season.
Mizore from Rosario+Vampire fits within these bounds. Based on a snow woman from Japanese mythology, she has a variety of ice powers, including making her limbs (and hair) into ice, blizzard attacks, and even ice clones.
Her mother Tsurara as well
JoJo's Bizarre Adventure has had a couple of ice stand users. The first one was a falcon named Pet Shop in Part 3 who could create ice formations in midair and control them. The second was Ghiacchio from Part 5 who could create an absolute-zero field around himself and control ice within his range
Mahou Sensei Negima! has Evangeline, whose ice magic can reach ice-age like states, including an ancient Greek spell that covers a 150-square foot area in absolute zero temperatures. it translates to something like "Eternal Glacier" and "End of the World".
The spell has two different endings and its effects vary based on which ending is used. The "Eternal Glacier" ending simply encases the target in a solid block of ice, while the "End of the World" ending actually turns the target's body into ice and shatters it.
Vampire Knight has Hanabusa Aido, a vampire with ice based powers. He's actually a pretty cool guy most of the time.
Fullmetal Alchemist: Brotherhood gives us the Isaac McDougall, the Freezing Alchemist. However, he's been shown to use not only just ice, but high-pressure water, steam, and his own blood. His favored mode of killing is to freeze or boil all the water in a person's body.
Guyver has Bio-Freezer, a Lost Number who can shoot chilling air that can freeze a lake in a few seconds. This has come in handy for the good guys a few times, but since he has otherwise below-average abilities for a Zoanoid and his freezing power leaves him exhausted whenever he uses it he usually ends up being Overshadowed by Awesome. Eventually he performs a Heroic Sacrifice, allowing himself to be absorbed by Aptom in order to save his life. Aptom then gains his powers.
Nobara Ibaragi in Gakuen Alice has the Alice (magic power) of Ice.
November 11 in Darker than Black sort of counts. His ability is to drain heat from anything he touches; cells burst and water turns to ice almost instantly. He can't make ice out of nowhere, however, and needs something to conduct the freeze effect to be of much use.
Akashikibu from Blazer Drive (coincidentally, she feels true beauty should last forever and manipulates a person with the same face-concealing bangs as Deidara).
Snow of MÄR uses ice-style ARMs (and one water-themed eventually). Her real-world counterpart is named Koyuki.
She's also weakened in a desert area, brought to the point of exhaustion in a volcano area and hinted to be strengthened in an ice field.
Free from Soul Eater uses ice magic. But after centuries imprisoned by the witches, he's a bit rusty and does things like encase himself in blocks of ice and fall into the Thames (he was trying to use the ice to avoid falling). Being nigh-invulnerable, this isn't much of a problem for him.
Metalgarurumon in Digimon can fire ice missiles and freezing breath (the latter oddly called "Metal Wolf Claw").
He's got ice and destructive versions of all his attacks, all of which are prone to being labeled "Metal Wolf Claw" or "Ice Wolf Claw" depending on how the writers are feeling. Also, there are a number of ice-related Digimon, and ice versions of non-ice Digimon.
Dr. Victor Fries/Mr. Freeze from Batman, now pictured above.
Bobby Drake aka Iceman, from X-Men. Mind you, that's just how he started out — turns out he's an Omega-level mutant *
Technically it means control of matter at the sub-molecular level, and someone could have sub-molecular control over something without having the same kaboomability as Cyclops. However, in practice, it just means "insanely powerful." Let's put it this way: Magneto isn't an Omega. Apocalypse may be. Jean Grey in full Phoenix mode is the sort of thing most characters mean when they say Omega. A few other Omegas include Rachel Summers (same powers as Jean, and Phoenix connection), Franklin Richards (once created a universe), and Mr. M (power over all matter and energy, and apparently life, with no limits except perhaps range. Half Molecule ManExpy, half JesusExpy.) That's the club Bobby Drake is now part of, and apparently his usual power level is a massive case of not knowing how to shot web.
with complete control over moisture. When Emma Frost (who is a psychic and normally has nothing to do with ice despite the name and the white outfit) took his body over, she did things with his powers that he never could on his own... but he's learning bit by bit.
In the Draco story arc, Bobby Drake gets his head cut off (in Ice form) he later reforms using the water coming from a demon opponent. Later, Beast issues a research paper regarding this unique mutation for Iceman.
He once cured himself of poisoning by replacing his entire body with new ice little by little this way.
Storm also has some Ice powers in the form of creating blizzards, but this is usally de-emphaized due to Superhero Speciation and uses more of her Thunderstorms and Tornadoes abilities. In the animated series, where Iceman wasn't around, Storm was more than happy to whip up blizzards that could flash-freeze things fairly quickly (though not as quickly as Iceman.)
Tora Olafsdotter/Ice, Sigrid Nansen/Icemaiden, Dr. Joar Mahkent and his son Cameron (both codenamed Icicle) and others in The DCU.
An issue of Justice League Adventures, set in the DCAU, featured a team-up of Icicle, Mr Freeze, Captain Cold, Killer Frost, obscure Wonder Woman foe Minister Blizzard, even more obscure Outsiders foe the Cryonic Man, and downright "Sorry, who?" Batman foe the Snowman. All led by Polar Lord, a new villain from Polar Boy's home planet. The story was called "Cold War".
Elijah Snow from Planetary. Not quite frost projection, but the ability to draw heat out of an object on a molecular level; in his second appearance, he turns nerve gas to slush.
Captain Cold: subverted in that his gun doesn't freeze people, it slows their molecules and the ice part is just a side effect. This is to Hand Wave the Harmless Freezing effect of his gun (as opposed to Mr. Freeze, whose freeze ray kills people quite nicely).
Killer Frost is an interesting variant as well: apparently created by someone with slightly more understanding of thermodynamics than most Ice People, she absorbs heat, rather than projecting cold. This means you can't Kill Her With Fire.
Made extra interesting by the fact that attempting to Kill Her With Fire just makes her happy - she uses the powers, because she can't get warm, due to a side-effect of getting them.
Arctica Lagopus from the series The Extinctioners, an Arctic Fox with Ice powers. Didn't see that one coming.
Skurge the Executioner from The Mighty Thor. Using his Axe, he opens a portal (By cutting the air) to a dimension of cold, letting the icy wind blow onto his enemies. It should be noted he can also do the same thing with a dimension of fire.
Ymir can create blizzards with no effort among other such Ice-related abilities (Of course, he is much stronger then most Giants, as he is the original Norse one). However, unlike Frost Giants, he is an Ice Giant, and seems to be literally living ice.
Kelda has weather control powers, which includes generating ice and forming weapons from it. And she can make poisonous ice.
Sub-Zero, from Blue Bolt Comics, gained ice powers when his spaceship passed through a comet.
Dr. Frost from Prize Comics had ice powers and would encase himself in ice to survive explosions.
Tor from Crack Comics had control over ice.
One-shot villain Icy Mike, for whom Empowered's boyfriend Thugboy once worked for.
Frostbite from DV 8 has an odd twist on the formula: his power is absorbing heat. He uses this to freeze enemies in their tracks, but he can also release his stored heat in an explosive blast.
The Pokemon fanfic epic Pokemon Master gave this ability to Misty, among other water trainers.
The Yu-Gi-Oh! GX fanfic Dangerous Black Ice gives this power to Marufuji Ryou, after having made him into one of the Seven Stars. Perhaps notably, he still wears black, not white.
John in With Strings Attached, thanks to his magical water-charm. Ice is just one of the many things he can do. Also, since he can alter the physical properties of water, he can create “warm ice” that won't hurt anyone it covers.
Fruits Basket fanfic The Eyes of the Cat allows a ghost to freeze the Big Bad alive by increasing the chill that being a ghost causes by about one million.
In ''Thor', the Frost Giants can create blasts of ice as well as shape it into weaponry.
The White Witch in the film version of The Lion, The Witch, and the Wardrobe was very much an ice person, possibly even more than her book incarnation.
From The Great Yokai war, a Yuki-Onna was one of those asked to help battle the (IIRC)Demon of Revenge. She says she can't help because it's not her season.
In The Singer of All Songs, there are several kinds of chantments (magic songs). The Daughters of Taris, an all-female religious order, can sing the chantments of ice, and they protect their territory with a giant ice wall. Instead of combining with water (indeed it's noted that the ability to swim isn't particularly common among them) the High Priestess also bears and passes on the knowledge of the chantments of ice that invoke darkness, the opposite of the chantments of fire which also have the power over light.
Jadis, the White Witch of C. S. Lewis's Narnia, causes unending winter and lives in an ice castle.
The titular Wintersmith, of the Discworld novel, though this is just a subset of his general "Embodiment of the force of winter itself" bit.
Maybe a bit of a stretch, but in Thief of Time, we find out that Kaos, the fifth horseman who left before they became famous, has a sword that's so cold it goes beyond absolute hero and generates a sort of "burning cold" anti-heat. He uses it to keep milk fresh by putting it in the same room as a super-hot burning furnace.
The Clayr of The Old Kingdom trilogy, though primarily a clan of all female clairvoyants, use ice to amplify their Sight, hence why they live in a Glacier. When away from the glacier, they use spells to create a screen of ice on which they project their Sight, so as to show others.
The Caroline B. Cooney book Freeze Tag has Lannie, the jealous girl who tries to steal away another girl's boyfriend by freezing said girl to death with her icy powers.
Harry also figured out that he can adjust his fire spells to draw heat less evenly from the surroundings, and a couple of times uses this to freeze a bunch of water.
After he took Mab's offer of becoming the Winter Knight, Harry has been able to use ice-related spells much more. It was hinted that his new mastery of ice and his old mastery of fire was significant somehow.
Firecrafters in the Codex Alera can do this by using their furies to remove heat from something instead of adding it. We first see this demonstrated by Kalarus Brencis Minoris, who thinks it's funny to push the obvious bully-target into a fountain and freeze the water around him.
The winter court in the Wicked Lovely series. Specifically, Beira the winter queen, and Donia the winter girl. Donia later becomes the next winter queen after Beira's death. Her Icy nature is caused by bitterness about being forced to become the winter girl, and thus not being able to be with her love Keenan, the summer king- their very natures are incompatible, although it is implied that after Beira's death, they at least try. I would imagine it would be painful; Keenan would end up covered in frostbite and Donia in burns.
The Haruki Murakami short story Ice Man... a woman falls in love with a guy who has "white patches of snow" in his hair and a look "piercing like an icicle" and it doesn't end too well.
Twilight Dragon has Princess Atoli, who is specifically known as the Sorceress of Snow.
In Robert E. Howard's Conan the Barbarian story "The Frost Giant's Daughter," the title character wears nothing but a veil of gossamer on a snowfield, can run over snow without leaving tracks, and when Conan catches her, is as cold as ice.
Then of course there's her dad Ymir who doesn't actually appear but rescues her and freezes Conan almost to death in the process.
The villain of Caroline Cooney's Freeze Tag combines this oddly with Taken for Granite—her basic schtick is that if she touches you, she renders you frozen and immobile, apparently forever, while fully conscious and aware.) She never actually kills any of her victims, and at several points she undoes the effect just to toy with them. (This leads to part of the conflict over whether or not to kill her—if she can't be redeemed, a lot of people will stay frozen.)
The title character from Mercedes Lackey's Snow Queen especially the second one have this ability, as does the Icehart.
Live Action TV
Sylar adds this power to his arsenal of powers he's stolen from other superhumans in Heroes. Tracy Strauss—Nikki's doppelganger— has the same power.
According to the NBC website, the Eighth Kingdom of The 10th Kingdom miniseries is ruled by the Ice Queen. Aside from being described as "terrorizing the people of the fishing villages and fjords", it is stated she wishes to rule all the Kingdoms and one day plans to conquer them. Clearly an example of a Woman in White and Evil Is Deathly Cold. (And this has been played up in various FanFics.)
Miyuki from Mahou Sentai Magiranger has this as her power. The same for her Power Rangers counterpart, Udonna, in Power Rangers Mystic Force. Of course, as high-ranking wizards, they - especially Udonna - can do a whole lot more.
Power Rangers Operation Overdrive villain Flurious is the most prominent one in the series. Lives in arctic cave, can freeze you over and shatter you (though this being a kids' show, you really don't see him do that a whole lot.)
Lily from Misfits gains the power of freezing objects she touches. In the Nazi timeline Captain Smith has Seth transfer her power into himself.
Mythology
The Yuki-Onna from Japanese mythology, often was an extremely pale woman who lived within snow storms. Tended to guide travelers to either their frozen deaths or to safety if she so wanted to.
Jack Frost, natch. Generally he simply brings winter to certain areas (winter/cold follows him everywhere), but some stories have him using his power to freeze people to death in an instant if they piss him off.
Dungeons and Dragons has had numerous variations and examples. Aside from the various deities of cold and winter, there's the Frostwind Virago that's the fey incarnation of the fickle and cruel nature of winter, the Frost Mage prestige class, the Winterhaunt of Iborighu prestige class, which eventually leads to transforming into an unholy abomination of ice and snow, the psionic Cryokineticist prestige class, and more.
D&D also has White Dragons, who have freezing breath instead of fire.
4th edition's different ruleset has pretty much killed "conjurer" and "evoker" wizard specialising, to be replaced by the classic elemental mages. Being an ice mage from level 1, with feats to match, is entirely doable.
First edition had an evil humanoid race called "Frost Men'' who could shoot a "cone of cold" as an eye beam.
Jerza Wagner, a ghost from the Ravenloft setting, drains the living warmth from her victims and leaves them frozen solid. No, they don't wake up if you chip the ice away.
While the Darklord Meredoth is technically a necromancer, he uses lots of ice-based spells and has a frozen lair.
Champions, being a super-hero role-playing game, has clones of many popular superheroes and supervillains, including a Captain Ersatz of Iceman named Icestar. He lacks the former's frigid body-armor, but shares the wisecracking personality. (An old rules example for Presence Attacks has Icestar blasting a villain-carried crate and quipping, "Heads up, boys, the Good Humor man is here!")
Rifts has an optional Psychic Character Class called the Freezer, with various cryogenic powers.
Psychokinetic psions in White Wolf's Trinity could specialize in Cryokinesis, allowing them to freeze enemies.
The Winter Court from Changeling The Lost get powers like this under the Contracts of Eternal Winter. They range from freezing any liquid solid instantly, to creating an aura of crippling cold, to causing a person to be hit by a hailstone the size of their head, to summoning a blizzard. Yes, even in hot climates.
Toys
Every single Toa of Ice in BIONICLE, plus a handful of other beings (though "a handful" does include an entire swarm of Kohrak).
Video Games
Okami's last brush technique, Blizzard, is received from Itegami in Kamui.
Lots of Robot Masters in Mega Man, including Ice Man, Blizzard Man, Cold Man, Freeze Man, Frost Man, Chill Man...let's not even get into the Reploids of Zero or ZX...
X series: Chill Penguin from X1, Blizzard Buffolo from X3, Frost Walrus from X4, Blizzard Wolfang from X6, and Avalanche Yeti from X8.
Ice is actually an interesting element in the Pokémon series. Pokemon with the type are hardly ever used because they have a disproportionate number of elemental weaknesses that are also commonly found. However, Ice-type attacks are extremely common (especially in competitive circles) since Ice itself is pretty much the only choice for taking down certain Dragon-typed 'mons.
Python from Metal Gear Solid: Portable Ops is a particularly inexplicable example. His powers come from mastery of liquid nitrogen. Justified as a Vietnam War wound left him unable to regulate his body's temperature and forcing him to wear a modified combat suit that uses liquid nitrogen to cool himself down.
The Golem Lolithia in the Wild ARMs series, also known as the Ice Queen.
Edea in Final Fantasy VIII shoots a piercing shard of ice as her Limit Break. It's not a huge part of her character, but certain events give it a strong association in players' memory.
Snow of Final Fantasy XIII learns the Blizzard series of spells, including Blizzaga (and Water), but no Fire or Thunder spells. He also gets to summon Shiva.
Sub-Zero of Mortal Kombat. And his pupil Frost, for that matter.
There were actually two Sub-Zeros. The first one was neutral/bordering on evil, and was killed by Scorpion. The second was his younger brother, who started off as attempting to complete his brother's hit, but ended up becoming a genuinely heroic figure.
Celsius, the Summon Spirit of Ice introduced in Tales of Eternia. For that matter, Celsius and her costume in Tales of the World: Narikiri Dungeon 3, and Tales of Eternia's Keele, who apparently was assigned both Celsius and Undine for that game.
Also in the Masou Kishin portion, the Water Herald Tytti Noorbuck (piloting Gaddeath) can use an ice area attack Kelvin Blizzard. And in Updated Rerelease of Lord of the Elemental, the Hydro Pressure become Jotunheim where she creat gigantic glacies to finish enemy. The rest of her attacks are water though.
Not to mention Frost Wyrms and the new Death Knight class (which, like mages, can specialize in frost effects).
racial conflict => external enemy required => a threat to all life => "too hot" (demons) and "too cold" (undead); logic at work, simple and elegant world design.
In terms of who's the frostiest class? In terms of raw number of (and amount of damage revolving around) frost spells, it is 1: frost mage 2: frost death knight 3: shaman 4: priest is getting a shadowfrost spell so that's a half a spell for them.
The Lich King also has a number of ice-based techniques in his arsenal.
Uesugi Kenshin in Sengoku Basara has lots of ice-based moves, and it's his element as well. And if your name is 'Kasuga', he's VERY NICE. Other ice users here include Itsuki and Hojo Ujimasa.
To drive the point home, his name was woolseyed in the first game to "Frost".
The third game adds Tsuruhime and Yoshiaki Mogami. The former an energetic young girl whose skill with the bow allows her to shoot ice arrows at her enemies and the latter can create ice sculptures as well as using feints and counterattacks.
Blizzard, the benevolent gorilla god of Primal Rage, breathes freezing air and summons ice pillars from the ground. His coloration is also ice-like, with pure white fur over blue skin.
Marle from Chrono Trigger. She's still listed as a 'Water'-type, though. And together with Frog (who uses liquid water), they have a double tech 'Ice Water'.
Ice and water are combined as 'Blue' elements in the sequel Chrono Cross. It opposes Red (fire/lava), and both tend to be vulnerable to each other.
Samus from Metroid has the Ice Beam, which is the weakness of the Metroids. In Metroid Fusion she also gains Diffusion Ice missiles.
Not to mention Noxus from Metroid Prime Hunters and Rundas from Metroid Prime 3: Corruption.
Mario using the Ice Flower in New Super Mario Bros. Wii and Super Mario Galaxy. Mario literally becomes made of ice in Galaxy but turns into a form that can shoot ice balls in NSMBW.
Mia and Piers, of Golden Sun and Golden Sun: The Lost Age respectively.
Let's not forget Alex!
Or anyone, if they equip the right Djinn (or items, for Frost in the first game).
Rief and Amiti in the third game.
Subverted in Fire Emblem. The Fimbulvetr and Blizzard spells have names and visual effects usually associated to ice magic... however, they're actually listed as wind tomes, since FE's anima magic doesn't include ice (only Wind, Fire and Thunder)
Mitsuru Kirijo in Persona 3 has an array of ice spells in her disposal, thanks to her persona.
In Persona 4 there are two ice users: Chie Satonaka and Teddie. Chie only barely counts, though. She stops learning ice spells around the time Teddie joins and ends up a beastial Kick Chick by the endgame. Averted by Yukiko. She actually uses fire skills.
Yukimaru and Fubuki from Disgaea 2: Cursed Memories come from a clan of ninjas from a hidden snow village, so all of their character-specific special techniques involve snow and ice.
Pram from Makai Kingdom, Mao, and Rozalin in Disgaea 3 have ice as their primary element.
The Holy Dragons in both of the aforementioned Disgaea titles have an affinity for ice, and combine it with light in their special attacks .
Although the True Water Rune can be held by any of the three main characters, ChrisLightfellow has the best affinity for it.
Freezing is a powerup in Backyard Baseball and other Backyard Sports games.
Elena in Visions & Voices is the only playable character that can use Cold spells.
Actually, Marlowe gets a single Cold spell.
The Queen of Ice, the Big Bad of Enchanted Arms. Appearance and personality-wise, she appears to be an Expy of Edea and Ultimecia, although instead of throwing ice or summoning a familiar that can, she's made out of ice and is the familiar.
Glacius from Killer Instinct is literally made of ice, he is also an alien, the inverse of Cinder, who is made of fire.
Sasquatch from Darkstalkers. Other characters, like Donovan Baine and Huitzil, also have some ice-based attacks.
Not elemental per say, but Commander Shepard of Mass Effect 2 is the only squad member with access to the cryo ammo power that allows their guns to freeze enemies solid and shatter them. Truthfully, only one out of the six classes Shepard can be lacks a freeze power.
The Silver Age - styled video game Freedom Force has a former Soviet spy turned supervillain Nuclear Winter and his minions.
Inazuma Eleven sports two teams associated with ice: the first is Hakuren, a team of Hokkaido children, whose captain is Shiro Fubuki, who is able to perform both the effective Ice Ground (a ball-stealing technique that freezes the enemy while Fubuki skates through an ice field) and the outstandingly powerful Eternal Blizzard (a powerful shot that is performed by making the ball spin in midair, absorbing cold air, then striking it with all one's might). The second one is Diamond Dust, led by Gazelle and his mighty kick, Northern Impact (he disappears and then shoots the ball from an ice field).
Frostbite from Ghouls Vs Humans. He is an ice elemental born from the "doomed souls in the Arctic" who avenges the deaths of those who are murdered or betrayed in the icy desert. He looks like a giant, floating skull made of ice and has the power of an icy breath, as well as powerful icy armor.
Advance Wars, Black Hole Rising, and Dual Strike have Olaf, whose army is immune to the effects on snow on the battlefield and whose (Super) CO Power makes it snow for two days.
inFAMOUS 2 has Lucy Kuo and the Vermark 88 men who Cole releases when saving Lucy, if you go for the good side of the Karma Meter Cole can become one of these as well.
From RuneScape: To'Kash the Bloodchiller and Astea Frostweb (also a spider summoner) on the frozen set of Dungeoneering floors, both of whom can freeze the player in block of ice, and Icy Bones, who surrounds the players with ice spikes and freezes those who aren't next to him; Kamil, the boss guarding the ice diamond in Desert Treasure, and its dessert-based expy/homage Karamel from the last part of Recipe for Disaster; and Lucien's ice titans, which can freeze the player in ice blocks, and ice demons, which create ice spikes around the player, trapping them in once place if they don't move.
From Antihero For Hire, Coldular/Froster/Cubenator, the ice-themed one-shot villain who picked a different name every damn time he spoke.
And managed to work up some cold-based puns that shamed pretty much anyone else on this list for their stupidity, and that is saying something.
With his recent reappearance, he's not said his new name but that doesn't stop the puns:
Coldular/Froster/Cubenator: I better make like a glacier and recede. Only, you know, faster.
Sil'lice in Drowtales, a Drow with an elementary affinity for ice (a snowflake is even part of her crest). She uses her powers to torture people by freezing their blood, and certainly fits the "icy" part of this trope in personality.
In a world ruled by Mad Scientists like Girl Genius, it's no surprise that the firefighters are something like the Ninth Aetheric Vapor Squad. Their firefighting tools are Gas Condensers, that when kicked up a notch, could freeze an entire castle to the point where you could crack it open with a hammer.
The Ice Immunes from Fetch Quest: Saga of the Twelve Artifacts are so called because they are not affected by the severe cold that ice brings. In fact, they developed a style of martial art utilizing it.
The Global Guardians PBEM Universe has Centigrade (who combines this with Playing with Fire), Fafza Tel ("Winter Willow" in Hungarian), Icicle, El Halcon Blanco ("White Hawk" in Spanish), Flurry (who combines this with Blow You Away), Snowblind, Snowdrift, Chillblaine, Frost, Frostbite, Sub-Zero, Doctor Zero, Tundra, Iceberg, Lady December. and Snowstorm.
And subverted by the Doctor's own Freeze Ray, which doesn't have anything to do with ice or a lack of heat.
Juniper Taylor in The Descendants. Not just water ice, either. She's frozen air at least once.
Whateley Universe characters like Icer, Winter, Bifrost, Nahga, and Frostbite.
And inventor Mister Cool who doesn't have the pwoer, but who invented the equivalent of a freeze ray.
Frost from Trinton Chronicles is one of these - he creates, controls, and even subverts ice and cold into every useful tool he can. It also helps he is immune to cold with the draw back that his powerful icy-aura can't be turned off only down, makes dating and cuddling rather interesting.
As a sub-troupe technically the Fairy Sisters have a touch of this too as they control the Ice Maze in the first story arc.
Ice Princess and Coldstar both have ice-controlling powers in LessThanThree Comics.
Darwin's Soldiers has the aptly named experiment "Ice" with well, ice powers. There are implications that several other experiments have similar powers but they are never mentioned.
Maureen "Permafrost" O'Connor, a one-time Static Shock character in a Very Special Episode about homelessness, had this as her power.
She was also a little nuts but not bad, which is good - she was one of the most powerful metahumans they faced and if she wanted to, she could have put the whole city in an ice age in seconds.
Omi of Xiaolin Showdown can adapt his Orb of Tornami Sheng Gong Wu to become this.
My Little Pony Friendship Is Magic gives us the Windigoes, winter spirits that feed off fighting and hatred. With enough hate, they could bury an entire land in snow and encase all of its inhabitants in ice.
Real Life
No, really. A real life example in the form of Wim Hof. Skeptical? Many are, but the man really has survived stuff which should be impossible by human standards. He is even called "Iceman".
Ice-minus bacteria, such as Pseudomonas syringae possess the ability to freeze water even at warm temperatures. Scientists believe their ice nucleating proteins are an integral part of ice crystal formation in clouds.