Dr. Jonathan Crane was crippled by an obsession with creating fear in others. For experimenting on human subjects with his specialized fear-inducing gas, Crane was fired. He took on the persona of the Scarecrow, a fear-inducing visage. His right hand is equipped with syringes containing his fear toxin. Scarecrow was captured and sent to Arkham Asylum. During a prison break, Joker released all prisoners, including Scarecrow. He quickly donned his costume and attacked prison guards.