Scarecrow

Scarecrow is a member of The Rogues and one of Batman's archenemies.

He is portrayed by Jason Mantzoukas.

History
Boo! Were you scared? The Scarecrow sure hopes so. Dr. Jonathan Crane was so interested in studying the effects of fears and phobias that he decided to put on a creepy scarecrow costume and be a super-villain. The fear gas that he uses makes people imagine that their greatest fears have come to life, leaving them helpless until it wears off.

Description
Scarecrow has a dangerous air about him. When he releases his special fear gas on victims they have visions of all kinds of scary things, like monsters, ghosts... and pizza kittens.