Society, Luthor, Killer Frost, and the surviving members join forces with the Justice League to defeat him. An amalgamated incarnation of Killer Frost appears in the teaser for the Batman: The Brave and the Bold episode "Darkseid Descending!", voiced again by Jennifer Hale. This version is identified as Louise Lincoln, wears Crystal Frost's attire, and is portrayed as Ronnie Raymond's vengeful ex-girlfriend. The Crystal Frost incarnation of Killer Frost appears in Young Justice, voiced by Sarah Shahi. The Caitlin Snow incarnation of Killer Frost appears in the Justice League Action episode "Freezer Burn", voiced by Mena Suvari. This version was caught in a freak accident involving "thermafrost", which turned her into Killer Frost, and is a fan of Mr. Freeze. An unidentified incarnation of Killer Frost makes non-speaking cameo appearances in Harley Quinn. This version's appearance resembles that of her counterpart from Batman: Assault on Arkham. Arrowverse Danielle Panabaker portrays Dr. Caitlin Snow / Killer Frost, in media set in the Arrowverse. Following initial guest appearances in Arrow and primarily appearing in The Flash, this version is a member of the Central City-based S.T.A.R. Labs team alongside Cisco Ramon / Vibe and Harrison Wells, which supports Barry Allen / Flash. In the first season, she struggles with her fiancé Ronnie Raymond's apparent death following S.T.A.R. Labs particle accelerator exploding and creating various metahumans before later discovering Raymond survived as part of Firestorm. Caitlin and Raymond later marry, but he gives his life to help the Flash close a singularity that opened over Central City. During the second season, Caitlin grieves for Raymond, but grows closer to Hunter Zolomon while he was disguised as Jay Garrick. When Zolomon reveals he has a disease that limits the use of his super-speed, Caitlin develops the Velocity serum to save his life. However, she and Team Flash soon discover Zolomon's true identity before he kidnaps her and takes her to Earth-2, where she meets her evil Earth-2 doppelganger, Killer Frost. Following this encounter, Caitlin begins to fear whether she has a capacity for evil as well. Due to Allen altering the timeline while creating and undoing the "Flashpoint" timeline in the third season, Caitlin has developed cryokinetic abilities and an alternate, villainous personality, both of which she attempts to hide from her friends. She also develops a relationship with Julian Albert. Caitlin is advised by her mother, Dr. Carla Tannhauser, to not use her