Scarecrow (DC)

"He calls himself "Scarecrow." Psychologist turned psychopath. He preys on the innocent and install them with fear. When I chose to wear my... costume, it was to prey upon the criminals, and install them with fear. The irony is not lost on me..."

- Batman on Scarecrow.

"Fear is primal. Raw. Blood pressure increases. Veins in your skin contract. Your immune system shuts down. Even if you attempt to steel against fear, ... it is undeniable. Fear makes us human. That was the conclusion of Charles Darwin. Who am I to argue? I'm a man of science, too. A psychologist. But few know my academic achievements. If you know me at all, you know me as ... the Scarecrow!"

- Scarecrow

Dr. Jonathan Crane, or better known as The Scarecrow, is a supervillain from the Batman series. He has invented a panic-inducing chemical gas known as Fear Gas that makes people see their greatest fears. He doesn't commit crimes for fun or for revenge, but as an experiment to further develop his Fear Gas.

He is a mentioned character in 1997 movie Batman & Robin, he was planned to be appeared which the main antagonist in the 1999 cancelled movie Batman Triumphant, he is the secondary antagonist of the reboot 2005 movie Batman Begins, a minor antagonist in the 2008 movie The Dark Knight, and a cameo character in 2012 movie The Dark Knight Rises. Scarecrow also serves as a major antagonist in the Batman: Arkham games, serving as the main antagonist of Batman: Arkham Knight.

Modern Age
In his youth, Jonathan Crane grew up with his abusive grandmother, a religious fanatic who tortured Jonathan so badly that he developed a crippling fear of her. His life at school didn't fare much better either, because of bullies who constantly teased him for his lean appearance. Jonathan eventually had enough of his tormentors and used elements from Kung Fu to developed his own fighting style called “Violent Dancing” which takes advantage of his thin frame. He also managed to create a fear-inducing chemical compound which his grandmother used to frighten crows. One night, Jonathan dressed up as a scarecrow and frightened some of the bullies from his school. However, his new fear tactics worked too well and resulted in those people's deaths. Crane became intrigued by the power of fear and dedicated himself to learn more about it. He then returned home to murder his grandmother using the Fear Toxin he had previously made.

Years later, Jonathan Crane became a university professor who used unethical methods to teach his students. Crane was soon fired because of this and searched for work elsewhere after killing those responsible for costing him his teaching job. He then became the head psychiatrist at Arkham Asylum and began using the alias Scarecrow while experimenting on his patients. Although Batman eventually discovered Jonathan’s crimes and had him incarcerated, he would continue to pose a threat to the Dark Knight as one of his most psychologically dangerous adversaries.

Quotes
"I made a fear toxin in the form of gas. Now I wear a scary mask. Ow!"

- Scarecrow (singing)

"Now this shouldn't scare a big guy like you but these crazies they can't stand it."

- Crane showing Falconi his mask

"Line up, sign up if your looking for some sin."

- Scarecrow (singing with the rogues)

"Hey! I take offense to that!"

- Scarecrow to Sweet Tooth

"Yeah... or a diploma will do!"

- Scarecrow to Sweet Tooth

"Everyone has a family."

- Scarecrow

"Face the awful truth."

- Scarecrow

"Imagine burning a live."

- Scarecrow

"You pretend to be fearless."

- Scarecrow

"You will beg for death."

- Scarecrow

"He's giving me an awful fright!"

- Scarecrow talking about Batman

"Creating fear is more rewarding."

- Scarecrow in Injustice 2 "Can I have drink? A strong one? This kind of question bores me."

- Scarecrow interview in Arkham Asylum

Batman Triumphant
Scarecrow was originally going to appear as the main antagonist of the film.

The Batman
Scarecrow was originally planned to appear in the 2004 animated series, but later he was planned to be used for the Christopher Nolan's batman films, Scarecrow was dropped from the The Batman series.

Arkhamverse
The Scarecrow is one of the villains Batman faces in the video game Batman: Arkham Asylum. He will appear as one of the main antagonists if the sequel Batman: Arkham Knight.

Batman the Brave and the Bold
He also appears in this animated show where he infected all of the pumpkin crop with fear gas on Halloween. It almost worked but Flash was able to take all the pumpkins away from the people in time. While he did this Crane tried to kill Batman with his scythe but was ultimately defeated. He later made a cameo in Arkham asylum.

Holy Musical Batman
In the show, Scarecrow, along with the other rogues, worked with Sweet Tooth in a plot to kill Batman, and take over the city after they attempt to put nuclear Warheads in the city's water supply.