A spirit originating from England. He is a snow elf who brings in cold weather during the winter and is thought to be responsible for the frost that forms on the windows of homes and buildings.
"Origin: England. A winter fairy in the shape of a snowman. It appears with the coming of winter. Though it is usually as innocent as it seems, it also freezes those it dislikes to death."
—Shin Megami Tensei A-Mode DDS Dictionary
Shin Megami Tensei III: Nocturne
"An elf-like creature who is the embodiment of all that is cool. It is said that he is the one who leaves those beautiful icy patterns on windows in the morning."
—Shin Megami Tensei III: Nocturne Compendium
A Jack Frost known as "Hee-ho" was the owner of a Junk Shop in Shibuya. After Hee-ho made enough money to travel, he sold the shop to a fabulous maleManikin, prone to flirting with the Demi-fiend. Hee-ho's dream was to become a big and powerful demon "like the king", so he headed to the Mantra Army Headquarters in Ikebukuro. When Hee-ho arrives at the Mantra HQ he is afraid of the demons, so he stays outside, but it's too hot there (there are pillars of fire near the entrance), so he decides to head elsewhere. Hee-ho ends up at Kabukicho Prison, presumably looking for Magatsuhi.
After Mizuchi was defeated by the Demi-Fiend, Hee-ho transformed into Black Frost and began calling himself "Emperor of Kabukicho", ruling over a small host of Jack Frosts. After being defeated by the Demi-Fiend, Black Frost melted and left behind the SatanMagatama. In the Third Kalpa, Black Frost appeared in a room with two 'switches' after Dante was defeated. After talking to Black Frost, he joined the Demi-Fiend's party without his consent, believing that he could grow stronger still by joining the one who defeated him.
Normal Jack Frosts can be encountered and contracted in Ginza.
Shin Megami Tensei IMAGINE
"Jack Frost is a sprite of English folklore that only appears in wintertime. He can appear in many different forms, such as a snowman, a child, or an old man. Jack Frost has a mischievous yet innocent personality. He tends to say "hee-ho" frequently and generally acts like a friendly child. He also has a menacing side, though — get him angry, and he'll freeze you solid."
—Shin Megami Tensei IMAGINE Compendium
Jack Frost appears regularly within Suginami field and the Suginami Tunnels instances. He also appears in NPC form supporting the Newbie Demon Buster NPC whenever she appears. This NPC gives quests regarding the Denshi Kairo instance, including the Ares quest and the Black Frost quest.
Jack Frost frequently acts as an event quest NPC around winter-themed events. Christmas and New Year variations called Santa Frost and Shishimai Frost are commonly awarded around this period. Outside of events, he is one of the four primary bazaar tending demons. Many pieces of player gear are themed around Jack Frost such as suits or his iconic hat. By equipping a piece of gear infused with his soul stone, players are also able to use Frost Punch.
Shin Megami Tensei: Strange Journey
"A mist spirit that appears during the winter and melts away in spring. His body is made of ice and snow, but do not be fooled by his cute appearance. Jack Frost spits ice and freezes people, a smile on his face all the while. Originally, he looked like an abominable snowman, but perhaps he changed form to more efficiently freeze people."
—Strange Journey Compendium
Jack Frosts reappear as common, recruitable demons in the first floor of Sector Bootes. A lonely Jack Frost appears in Sector Carina's basement, moping over the loss of his family. In an effort to achieve revenge, he asks the protagonist to get him an Ice Vest to increase his power. Upon getting the item and using it, the Jack Frost grows and becomes a Frost Ace, unlocking the Frost Ace Special Fusion combination and granting a powerful gun to the protagonist.
Devil Summoner: Soul Hackers
"A frost spirit that appears during the winter and melts away in spring. He is made of ice and snow, but do not be fooled by his cute demeanor. Jack Frost freezes people with his cold breath, smiling all the while. He originally looked like an abominable snowman, but he may have changed form, the better to freeze people."
—Soul Hackers 3DS Compendium
If Jack Frost's loyalty is maxed out, he can be converted through Mystic Change into Candy Boots, a rare gift item that can make it easier to communicate with certain kinds of demons.
Devil Summoner: Raidou Kuzunoha vs. The Soulless Army
Jack Frost is a recruitable demon and ally. During a second cycle, Jack Frost steals a uniform and fuses himself with it, becoming Raiho.
Megami Ibunroku Persona
"Oh! Jack Frosts! Careful... Their outwardly adorable appearance is a ruse to lure people in. Then, they use their icy breath to freeze their unsuspecting prey!"
Jack Frost is the second Persona available from the Lovers Arcana and appears as a large Jack Frost with exaggerated cap tails. As a Persona its stats grow evenly with each rank and it focuses mostly on Magic Defense. When returned to the Velvet Room at MAX rank it yields a Luck Incense.
The demon version of Jack Frost first starts to appear after the party exits Mikage Hospital into Mikage-cho. A pair of Jack Frosts NPCs appears in the Snow Queen Quest: Hee-ho-kun and Hee-ho-chan (credited in the English release as Raiho and Reiho). Before the three towers are conquered, they can be found in the room that leads to Devil's Peak. Afterwards, they can be found in the Ice Castle, where they use their powers to teleport the party to a higher floor so they can fight the Night Queen. They can also trade Ambrosia for the totems needed to fuse the Ultimate Personas.
Persona 3 / FES / Portable
"A winter fairy of European descent. Normally an innocent creature, but if provoked, he will kill his victim by covering him in snow."
—Persona 3 FES Compendium
In Persona 3, one of Elizabeth's or Theodore's requests require the player to fuse a Jack Frost with the skill Dia. Successfully completing this quest rewards the Protagonist a High-Cut Armor. He also appears as Elizabeths ice Persona during her boss fight.
Additionally, the player can obtain Jack Frost Dolls from the claw machine in Paulownia Mall.
Persona 4 Arena
While not making a major appearance in Persona 4 Arena, one of Teddie's alternative palette swaps resembles Jack Frost.
Jack Bros.
Jack Frost is one the three initial playable characters in this spin-off title named after him and his brothers where he must hurry to return to his own world before midnight on Halloween hits. His attacks are weaker compared to the other characters, but his rate of fire is the highest in the game.
DeviChil
A boisterous Jack Frost under the influence of villains
In the anime, Jack Frost is extremely clumsy and vocally communicates using only his characteristic phrase, "hee-ho". Initially, he appears under the control of the villains and attacks the party. Having no choice, Setsuna Kai and his nakama Cool tries to fend Jack Frost for as long as they can while Mirai Kaname makes efforts to wake him up. After a literally heated battle, Mirai succeeds. He then agrees to accompany the party.
DemiKids Light & Dark
"Cheerful little snow-demon with a unique sense of humor that can send chills down the spine."
Known as J. Frost, they are the main inhabitants of Dem Ice and reside in a town called "Frostville". The Jacks, Mini Icy, and Strawberry Frost are the main civillians, Icy Aces serving as military, and King Icy ruling over them all. Akira passes through the town on his way to the Valhalla, and has the option of aiding "Zack Frost" complete a quest to become an Icy Ace. Other Jack Frosts can be seen all over Valhalla and Dem alike. He can perform the combo Blizzard with Ice Maid, Icy Ace, and King Icy.
Devil Children Messiah Riser
Jack Frost is being attacked by Imperium demons in the Ice Cave found on Ice Makai. Akira must either send allies or press the button to move the platform to help Jack before the Mokele Mbembe kills him. Upon completing the stage Jack Frost joins the party.
If the player chooses to do so, he or she can revisit Coordinate 136 to find Pyro Jack without his partner, perhaps implying that the Jack Frost brother had been killed since then.
Digital Devil Saga: Avatar Tuner 2
"Are you down, hee ho?"
—Jack Frost, Digital Devil Saga: Avatar Tuner 2
Jack Frost is in random encounters but no longer appears as a common enemy. Instead, he will quiz the player with 20 questions per battle, stopping only when the player answers wrong or correctly answers all questions for the round. Should the player correctly answer all 100 questions they win a certificate for answering the 100th question correctly, and a set of stats increasing Data. If all answers have been answered correctly, every time the party encounters Jack Frost, he will give the player random items before running away.
Players will also have the opportunity to fight Jack Frost if all questions are answered correctly in the final dungeon, the 3rd Layer of the Sun. Jack Frost will prefer to use Breath to freeze a party member and attack them repeatedly, but should that avenue of attack be cut off with Ice shields, he will attack using other skills. Using debuff spells on Jack Frost will make him waste turns casting Dekunda rather than attacking. Defeating him nets the Pass Ring and Magatama ammo. He will also continue to appear and grant the party items after the battle.
It should be noted that both the Jack Frost that appears in random encounters and the Pyro Jack that hangs around Mad Mart aren't the Hip Hop brothers from the first game, as both the data of the Hip Hop brothers and the data of Pyro Jack/Frost appear in separate areas of the sun.
Additionally, Jack Frost dolls appear scattered throughout the Karma Society Tower.
Devil Survivor 2
"A frost spirit that appears during the winter and melts away in spring. He is made of ice and snow, but do not be fooled by his cute demeanor. Jack Frost freezes people with his cold breath, smiling all the while. He originally looked like an abominable snowman, but he may have changed form, the better to freeze people."
—Devil Survivor 2 Compendium
Persona 3 The Movie
Jack Frost is the first Persona summoned by Makoto due to awakening the power of the Wild Card, and was used to absorb the Arcana Priestess's ice attacks. He obtained him after defeating the Arcana Magician.
Jack Frost as he appears in the credits of Jack Bros.
Jack Frost as he appears in Jack Bros.
Trivia
Even though Jack Frost is perhaps the most popular and known demon in the entire series, Cerberus has been present in the series since the novels while Jack Frost was only introduced in Megami Tensei II.
Jack Frost has an easy to miss tail because his body and tail are monochromatically white.
Jack Frost is frequently given cameos in Shin Megami Tensei games and other titles produced by Atlus. Pictures of Jack Frost can frequently be seen on vending machines and posters in the game. He is also Atlus's mascot and references this in Strange Journey.
In a Shin Megami Tensei III: Nocturne interview, series producer Cozy Okada answered Jack Frost to be his favorite demon, while artist Kazuma Kaneko preferred Take-Minakata.
He is the mascot of Atlus Co., Ltd. and he makes appearances in a number of Atlus games, primarily in the Megami Tensei series. Jack Frost's counterparts, also known as his "brothers" are called Pyro Jack and Jack Ripper, along with many other varieties also appear in many games. He often says "Hee-ho" and interjects "hees" and "hos" into his dialog, a common verbal tic shared with other variations of "Jacks".
He also makes a cameo in another Atlus game Etrian Odyssey II: Heroes of Lagaard. One of the female Gunner class has a Jack Frost button on her hat.
