Formerly an alternate meta-personality of Dr. Caitlin Snow, known as Killer Frost. Sometime after being blasted with Mirror Monarch's gun, Frost separated from Caitlin and obtained her own body, which was revealed in episode 4 of season 7 "Central City Strong".
Appearances
The Flash
Main cast, played by Danielle Panabaker
- Episode 7x04: Central City Strong (Mar 23, 2021)
- Episode 7x05: Fear Me (Mar 30, 2021)
- Episode 7x06: The One with the Nineties (Apr 6, 2021)
- Episode 7x07: Growing Pains (Apr 13, 2021)
- Episode 7x08: The People v. Killer Frost (May 4, 2021)
- Episode 7x11: Family Matters, Part 2 (May 25, 2021)
- Episode 7x14: Rayo de Luz (Jun 22, 2021)
- Episode 7x15: Enemy at the Gates (Jun 29, 2021)
- Episode 7x16: P.O.W. (Jul 6, 2021)
- Episode 7x17: Heart of the Matter, Part 1 (Jul 13, 2021)
- Episode 7x18: Heart of the Matter, Part 2 (Jul 20, 2021)
- Episode 8x02: Armageddon, Part 2 (Nov 23, 2021)
- Episode 8x04: Armageddon, Part 4 (Dec 7, 2021)
- Episode 8x05: Armageddon, Part 5 (Dec 14, 2021)
- Episode 8x06: Impulsive Excessive Disorder (Mar 9, 2022)
- Episode 8x07: Lockdown (Mar 16, 2022)
- Episode 8x08: The Fire Next Time (Mar 23, 2022)
- Episode 8x09: Phantoms (Mar 30, 2022)
- Episode 8x10: Reckless (Apr 6, 2022)
- Episode 8x11: Resurrection (Apr 13, 2022)
- Episode 8x12: Death Rises (Apr 27, 2022)
- Episode 8x13: Death Falls (May 4, 2022)
- Episode 8x14: Funeral for a Friend (May 11, 2022)