Scarecrow

Background
Gawky and uncoordinated as a child, Jonathan Crane was often the target of neighborhood bullies. Initially frightened by their taunts, Crane eventually decided to turn the tables and began voraciously studying phobias and the nature of fear.

As an adult, Crane became an expert psychologist; specializing in fear, and acquired knowledge of how certain combinations of chemicals could affect the human psyche. After becoming a professor at Gotham City University, he was dismissed for using unorthodox teaching methods. His fragile mind snapped and he adopted the guise of the Scarecrow to exact his revenge.

Involvement

 * Scarecrow is one of the three villains that have taken over Arkham Asylum.
 * Scarecrow is the focus of the Halloween event "Spooktacular, Spectacular".

Heroes

 * He is releasing fear gas in East End, and he is the final boss of the first quest chain for Tech heroes (Batman). His henchmen are referred to as Screamers, Hallucinations, Tormentors, and Poisoners.

Villains

 * Sometime after his defeat, he apparently approached Mr. Freeze, asking to help with his plan to save Nora, but was turned down.

Known Drops

 * Terrormaster's Legguards (Rare)
 * Shroud of the Scarecrow (Epic)

Trivia

 * The Scarecrow first appeared in World's Finest Comics #3 (1941)