
His ongoing criminal reign of terror makes him one of Batman's most psychologically dangerous foes.

Kicked out of his university for experimenting on human subjects, Crane adopted the identity of the Scarecrow and armed himself with a specialized fear-inducing gas that makes a person's deepest fears become frighteningly real. Taunted and bullied in his youth, Jonathan Crane vowed to overcome his fears through the study of psychology and biochemistry.
