We know Danielle Panabaker as the fierce Killer Frost/highly intelligent Caitlin Snow in the CW's The Flash. She's proven herself to be a vital part of the team at S.T.A.R. Labs. But what else do we know about the actress behind Dr. Snow's frosty face? Before she made it to the CW's Flash and Arrowverse, Panabaker starred in a variety of films, some of which were successful and some were, well, not so much. The truth is, she's been acting since she was a teenager and got her big debut in some of those Disney Channel original movies.