Danielle Nicole Panabaker (born September 19, 1987) is an American actress. She portrayed Caitlin Snow as a special guest starring role on Arrow, DC's Legends of Tomorrow, and as a lead role on The Flash.
DC's Legends of Tomorrow
- Panabaker portrays Caitlin Snow/Killer Frost on the Arrowverse; a guest starring role in the second, third and fourth seasons of Arrow, and as a lead role in the first, two and three seasons of The Flash. Also on The Flash, she also has portrayed Hannibal Bates (as Caitlin Snow of Earth One) in season one and Killer Frost of Earth Two in season two.