Doctor Harold Hadley is a medical for the United States government. Under the orders from Wade Eiling, Dr. Hadley performed constant tests and surgeries on Bette Sans Souci, better known as Plastique.

When Plastique escaped, she hunted down Dr. Hadley but was ambushed by Eiling before she was able to kill Hadley. The Flash helped Sans Souci escape, and Dr. Hadley escaped with his life. [1]




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