Earlier today we had casting news on Arrow, not to be outdone, The Flash has cast the character Plastique for episode five. E! Online is reporting that Kelly Frye has landed the role of Plastique aka Bette Sans Souci. The character herself is described as a bomb disposal expert in Iraq who, following exposure to the energy released by the S.T.A.R. Labs explosion. Bette now has the ability to turn any object she touches into an explosive.