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    I used to be afraid that because we shared a body, I was only gonna get to live half a life, that I was only gonna be half a person. I realize now, that isn't true. You didn't take anything from me. In fact, it's just the opposite. You make my life complete. I gotta be honest, I'm a little worried that we're not gonna make it out of this and that I might lose you forever. And I can't handle that. I would die. I love you more than anything.
    — Frost to Caitlin Snow[src]

    Frost, formerly known as Killer Frost, was the former alter of Caitlin Snow when Snow was cured of amyotrophic lateral sclerosis (ALS) and developed dissociative identity disorder.

    Frost originally worked in the criminal world alongside Savitar, and later served under Amunet Black. Frost soon reformed and joined Team Flash and switched positions with Snow regularly. Eventually, the injury caused by Eva McCulloch's Mirror Gauntlet split Frost and Snow apart.

    Originally thinking she could live a normal life, Frost was hunted by government official Kristen Kramer and sent to prison for his crimes before rebranding as a vigilante. Luckily, Frost's heroic actions during a prison break allowed her to be on parole, rejoining Team Flash's actions.

    Biography[edit | hide | hide all]

    Early Life[edit | hide]

    At some point of Caitlin Snow's life, Frost was created and became a split personality of her. However, she was hidden until recent years. In 2019, Snow let Frost to take main control.

    In 2017, Frost committed several crimes before reforming. This includes an aggravated assault on Acolyte, an attempted murder on Tracy Brand, two kidnappings of Julian Albert and Cecile Horton.[16][17]

    At some point, Frost read some of Rebecca Silver's books and was aware that Mick Rory is Rebecca.[18]

    Not a Killer[edit | hide]

    Black Hole[edit | hide]

    After the crisis, Frost was sent to fight Doctor Light and was injured by the Photon Rifle blast.[3] Later, Frost tried to use cold healing to help the wound but was unable and caused both herself and Snow unconscious. A few hours later, Cisco and Ralph brought a polar bear to visit her at her apartment. As they saw her sick, they made her awake again. Since they were unable to completely heal her, Snow suggested seeing her mother.[19] However, Frost was unwilling to as she was afraid Carla would hate her. With Ralph's encouragement, she decided to visit Carla.[20]

    Return[edit | hide]

    Frost using superhuman speed and cryokinesis

    Four weeks later, Frost returned fully recovered and fought Eva McCulloch. However, due to Barry's depleting emotions, she was not rescued by him and fell unconscious after being shot by Eva's laser cannon. Brought back to S.T.A.R. Labs, Barry was able to synthesize a cure and bring Frost back awake.[21]

    Later, Frost fought a "rogue" Barry using Velocity X and powering herself with superhuman speed. However, she was quickly defeated and was brought back to S.T.A.R. Labs by Allegra after the latter's successful defeat of Barry. Despite their effort, the Quantum Ball thrown by Barry before the fight returns and knocks the team unconscious.[21]

    Mirrorverse Invasion[edit | hide]

    Frost and Cisco fighting side-by-side

    Waking up from her injuries, Snow sees Barry crying over Iris and assisted in bringing her to the med lab. Frost then prepared for the final showdown between Team Flash and Eva's army. However, Cisco's gadgets failed and fled to her. The two then chose to fight the army hand-to-hand.[22]

    After Eva realized what she had done, Iris and Barry assisted her in restoring the normalcy and Frost returned to S.T.A.R. Labs. She then bid farewell to Ralph after his extreme injury and told him that she agreed to a road trip.[22]

    Split from Snow[edit | hide]

    Frost and Snow in two bodies

    A week after the Invasion, Frost and Snow suffered from headaches and went for a sleep, only to wake up in separate bodies. They then approached Cisco Ramon and surprised him with their sudden change.[23] Cisco later brought them to the Cortex and surprised Barry and Iris.[24]

    They then went to the lounge and discussed the prior events to the split. Barry then sped off to fight Psych and later Frost assisted the treatment of his injury. Frost then approached Cisco who was attempting to fix the Quantum Splicer for the merge. Frost then sabotaged the device and was confronted by Snow, with Frost telling her that she didn't want to merge after finally getting to live a life with her own body.[24]

    Hours later, Barry, Frost and Cisco went to the Cleary Capital Investments Office and fought Psych. Frost was then quickly placed in a "nightmare" where she was arrested by the CCPD due to her criminal activities in 2017. In the "nightmare," Frost asked Joe who turned her in and suspected Mark, with Joe telling her it was Caitlin Snow.[24]

    The trio then returned to S.T.A.R. Labs and suffered from panic attack symptoms. Frost was alone in the Speed Lab fixing the splicer until Snow looked for her. After telling her about her own fears, Snow offered Frost to sleep in an extra room in her apartment and considered her a sister.[24]

    Time Pocket[edit | hide]

    Prior Criminal History[edit | hide]

    Arrested[edit | hide]

    Life in Prison[edit | hide]

    Taking away a metahuman's powers isn't the same thing as taking away a gun from a criminal. Erasing our powers is erasing our identity. It's saying, "Hey, you were made bad, change that." But shouldn't justice be about changing the way a person acts, not the way they were born? I get it. You fear us because we're different. You'd feel safer if we were the same. But different can't be cured. It's here to stay. We're here to stay. Some of you only think of me as the criminal I used to be. Back then, I was only interested in protecting myself. But then, I found someone else worth protecting. And protecting that person led me to protecting a whole city. And slowly I changed. I learned how... I learned how to be selfless instead of selfish. I learned that I'm my best self when I'm protecting other people.
    — Frost[src]

    Hunting Chillblaine[edit | hide]

    The Godspeed Imperative[edit | hide]

    Rampage[edit | hide]

    Nora and Bart[edit | hide]

    All Hands on Deck[edit | hide]

    Leveled Up[edit | hide]

    Heroic Choices[edit | hide]

    Double Date[edit | hide]

    Something Beyond Death[edit | hide]

    Believe in the Impossible[edit | hide]

    Survival Instinct[edit | hide]

    Reckless Actions[edit | hide]

    Memories in the Snow[edit | hide]

    Massacre[edit | hide]

    Becoming Hellfrost[edit | hide]

    Death[edit | hide]

    Alternate Versions[edit | hide]

    Erased Timeline[edit | hide]

    Armageddon[edit | hide]
    Despero's Prophecy[edit | hide]

    Reverse Flashpoint[edit | hide]

    Powers and Abilities[edit | hide]

    Powers[edit | hide]

    • Cryogenic Physiology: In an attempt to cure Caitlin Snow's amyotrophic lateral sclerosis (ALS), Thomas Snow experimented on both himself and his daughter, creating an artificial Split Personality for both of them and a cryogenic physiology when the alter fronts.[6] However, Frost was later split from the body of Caitlin Snow when the effects of Eva McCulloch's Mirror Gauntlet spliced their bodies.[23]
      • Thermokinetic Cryokinesis: By drawing heat, Frost was able to freeze objects within a radius without even touching them.[16]
        • Accelerated Healing: Also known as "ice healing", Frost could use her cryokinesis to speed up the healing process.[16]
        • Cryokinetic Breath: Frost was capable of breathing out cold air and freezing objects.[16]
        • Cryokinetic Blasts: Frost had the ability to create cold blasts of ice from her bare hands.[16]
        • Cryokinetic Constructs: With precise concentration, Frost could create objects with ice and use them as weapons, most commonly daggers for hand-to-hand combat.[25]
        • Superhuman Durability: Despite being hit with a bullet, Frost only suffered from minor injuries.[16]
    • "Grief Energy" Mutations: Frost voluntarily absorbed grief energy from Deathstorm's home dimension, greatly enhancing her abilities and making herself powerful enough to combat Deathstorm.[5]
      • "Grief Energy" Absorption: Hellfrost had the ability to absorb the apparitions sent by Deathstorm by consuming the grief energy required to create them.[5]
      • Pyrokinesis: As Hellfrost, Frost was able to generate and shoot flames based on cold fusion.[5]
        • Flight: By combining her cryokinetic constructs and her flames, Hellfrost could lift herself above the ground and defy gravity.[5]

    Former Powers[edit | hide]

    Frost runs at superhuman speed
    • Powers via Velocity X: Frost injected herself with Velocity X as a countermeasure against The Flash.[21]
      • Superhuman Durability: Frost was able to survive a fall from a tall skyscraper at high velocity with little injuries.[21]
      • Superhuman Speed: After injecting herself with Velocity X, Frost gained superhuman speed.[21]
      • Superhuman Stamina: Despite running across a great distance, Frost was able to continue moving until the Velocity X wears off.[21]

    Abilities[edit | hide]

    • Chemistry: On the "passenger seat" for years in Snow's mind, Frost learned chemistry from the former's early years in school.[26]
    • Medical Knowledge: Like learning chemistry from Snow, Frost was able to have the same knowledge of medication and acts as a doctor in the field as well as in S.T.A.R. Labs.[26]
    • Peak of Physical Condition: Frost was in excellent shape after training herself in the S.T.A.R. Labs gym.[27]
      • Hand-to-Hand Combat: Frost was able to take down dangerous criminals, Nazi soldiers and Reflections with ease.[25][22]
        • Knife-Fighting: Frost wielded a dual icicle blade against Cicada.[28]

    Weaknesses[edit | hide]

    • Cold Fusion Flames: While Frost did not sweat, the "Black Flame" was able to make her do so and burn her skin.[29]
    • Flashtime: When experiencing Flashtime, the extreme friction generates a high amount of heat that disallows her to generate ice from her body.[30]
    • Metahuman Cure: Due to Frost's unique process of developing powers, Team Flash was uncertain that the Metahuman cure will or will not be harmful to Frost. Later, Carla Tannhauser ran several tests and revealed that it would remove her powers without killing her.[15]
    • Power-Dampening Technology: Like other Metahumans, Frost cannot access her powers when in close contact with a power-dampening device.[31]

    Equipment[edit | hide]

    Former Equipment[edit | hide]

    • Frost Suit: Frost wore a navy leather suit with a snowflake emblem on the chest as well as a blue jacket.[18]

    Appearances[edit | hide]

    Monster Appears
    Shade Vision
    Killer Frost Appears
    Invasion! Mentioned
    Borrowing Problems from the Future Appears
    Untouchable Appears
    Abra Kadabra Appears
    The Once and Future Flash Appears
    I Know Who You Are Appears
    Cause and Effect Appears
    Infantino Street Appears
    Finish Line Appears
    The Flash Reborn Appears
    Mixed Signals Appears
    Girls Night Out Appears
    When Harry Met Harry... Mentioned
    Therefore I Am Mentioned
    Crisis on Earth-X, Part 1 Appears
    Crisis on Earth-X, Part 2 Appears
    Crisis on Earth-X, Part 4 Appears
    Don't Run Appears
    The Trial of The Flash Appears
    The Elongated Knight Rises Appears
    True Colors Appears
    Enter Flashtime Appears
    Run, Iris, Run Mentioned
    Lose Yourself Appears
    Fury Rogue Video Footage
    Therefore She Is Mentioned
    Harry and the Harrisons Mentioned
    Think Fast Vision
    We Are The Flash Voice
    The Flash: Climate Changeling
    Nora Mentioned
    The Death of Vibe Mentioned
    All Doll'd Up Mentioned
    The Icicle Cometh Appears
    O Come, All Ye Thankful Appears
    What's Past Is Prologue Appears
    Elseworlds, Part 1 Appears
    Elseworlds, Part 2 Appears
    Elseworlds, Part 3 Appears
    The Flash & The Furious Appears
    Seeing Red Appears
    Memorabilia Mentioned
    Goldfaced Appears
    Cause and XS Appears
    King Shark vs. Gorilla Grodd Appears
    Failure Is an Orphan Appears
    Snow Pack Appears
    Gone Rogue Appears
    The Girl with the Red Lightning Appears
    Legacy Appears
    Into the Void Appears
    A Flash of the Lightning Appears
    Dead Man Running Appears
    Post 97 Mentioned
    There Will Be Blood Appears
    Kiss Kiss Breach Breach Appears
    License to Elongate Appears
    The Last Temptation of Barry Allen, Part 1 Appears
    The Last Temptation of Barry Allen, Part 2 Appears
    Crisis on Infinite Earths: Part Three Appears
    Crisis on Infinite Earths: Part Five Appears
    Marathon Appears
    Love Is a Battlefield Appears
    Post 99 Pictured
    Grodd Friended Me Appears
    Post 100 Mentioned
    The Exorcism of Nash Wells Appears
    Liberation Mentioned
    Pay the Piper Appears
    Success Is Assured Appears
    The Speed of Thought Appears
    Mother Appears
    Central City Strong Appears
    Fear Me Appears
    The One with the Nineties Appears
    Growing Pains Appears
    The People v. Killer Frost Appears
    Timeless Mentioned
    Family Matters, Part 1 Mentioned
    Family Matters, Part 2 Appears
    Good-Bye Vibrations Mentioned
    Masquerade Mentioned
    Rayo de Luz Appears
    Enemy at the Gates Appears
    P.O.W. Appears
    Heart of the Matter, Part 1 Appears
    Heart of the Matter, Part 2 Appears
    Armageddon, Part 1 Mentioned
    Armageddon, Part 2 Appears
    Armageddon, Part 4 Appears
    Armageddon, Part 5 Appears
    Impulsive Excessive Disorder Appears
    Lockdown Appears
    The Fire Next Time Appears
    Phantoms Appears
    Reckless Appears
    Resurrection Appears
    Death Rises Appears
    Death Falls Appears
    Funeral for a Friend Flashback
    Into the Still Force Flashback
    The Curious Case of Bartholomew Allen Mentioned
    Keep It Dark Mentioned
    Phantom Punch
    Negative, Part 1 Mentioned
    Negative, Part 2 Mentioned
    Wednesday Ever After Dream
    Hear No Evil Pictured
    Rogues of War Mentioned
    The Mask of the Red Death, Part 1 Mentioned
    The Mask of the Red Death, Part 2 Mentioned
    The Good, the Bad and the Lucky Mentioned
    Wildest Dreams Mentioned
    Partners in Time Flashback
    It's My Party and I'll Die If I Want To Mentioned
    A New World, Part 1: Reunions Pictured
    A New World, Part 2: The Blues Mentioned
    A New World, Part 3: Changes Name Seen
    A New World, Part 4: Finale Mentioned

    Gallery[edit | hide]

    Promotional Images[edit | hide]

    References[edit | hide]

    Other versions of Frost

    Caitlin: 1
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