Following the 1986 multi-title event Crisis on Infinite Earths reboot, the character's origin story is expanded on in Batman Annual #19 and the miniseries Batman/Scarecrow: Year One, with this narrative also revealing that Crane has a fear of bats.
This fear was intended for the one who was willing to disrupt his plans: Batman. The Dark Knight is what the Scarecrow fears the most and curiously the one who was closest to becoming a reality.
The Scarecrow's greatest fear in Batman Begins was Ra's al Ghul. Throughout Batman Begins Crane refers to the man he works for as a cudgel against Carmine Falcone. When the freshly-gassed Crane sees Batman as the coal-faced demon, he says, "Ra's al Ghul." Sure, he might be just answering Batman's question.
Crane was gradually beginning to lose his own sense of fear, increasing the instability of his mind; however, due to Batman being what he saw when infected by Fear Gas, Crane retained a fear of bats no matter how much his immunity to the toxin increased.
Since his first encounter with Batman, he developed chiropteraphobia (fear of bats). Obsession: Motivated by an obsessive need to create fear in others, Scarecrow goes from using the primal emotion as a weapon to the point where he preaches it.
For much of the Scarecrow's comic book past, he was simply a psychiatrist obsessed with the concept of fear as the result of being bullied in childhood — not only by classmates in school, but, in some versions of his origin story (most notably in Batman: The Long Halloween, which has been an inspiration for Gotham more ...
While fans got to hear many memorable quotes from Joker in Batman: Arkham, the series also revealed what his greatest fear is supposed to be. As it turned out, The Joker feared being forgotten more than anything else because it meant nobody was afraid of him anymore, rendering all his crimes void.
Weakness: Scarecrow's weakness is his anxiety disorder. He is also addicted to and obsessed with fear, including a fear of bats and a fear of crows after being attacked at his family's aviary.
His face has an even more a skeletal like structure, with some of his face peeling or falling off, and (as evident in the Arkham Knight Toy), his left leg also needs braces. So clearly he was heavily injured in that fight, and no doubt that he blames batman for it, fueling his hate for him.
There's no doubt that recalling the fate of his parents is Bruce's biggest fear and regret. No matter who kills Batman's parents in different media, it's the catalyst to the person he becomes. Bruce spent all his childhood and early adulthood scared of remember what had happened.
Batman worries about things like his loved ones dying, failing to save Gotham, or his successors becoming evil. Unfortunately for the Dark Knight, these fears have often manifested in reality, with Bruce Wayne having to face his worst nightmares and push his mental limits.
Scarecrow is a supervillian in the DC comic book universe and is one of the main enemies of Batman. His real name is Dr Jonathan Crane and he is a trained psychologist.
Mental Illness: After being doused with his father's fear toxin, Jonathan is mentally unstable, unable to shake the hallucination of an animated scarecrow. Phobia: Jonathan suffers from a severe case of chiropteraphobia (fear of bats) and a chronic fear of Batman.
His plan succeeded, but Batman's will was stronger than the toxin's effects, which were nullified. Using a previous idea, Scarecrow developed a fear pheromone, which once injected into the body, would cause every person nearby to fear that person infected.
The Scarecrow constantly proves to be a dangerous threat to the Dark Knight not due to physical strength, but to the emotional and psychological damage his toxins can cause. In fact, Scarecrow tends to shy away from physical confrontations and instead lets his victims fall prey to their own waking nightmares.
Scarecrow, aka Jonathan Crane, is a terrifying villain in the Batman: Arkham series, most notably in Batman: Arkham Knight, which cements him as the series' best villain over the Joker. The strength, resilience, and success that Scarecrow has over the course of the games make him the best villain in the series.
If you ask Joker, it's a moot point—as he famously states in Detective Comics #664, a side effect of Joker's tumble into the Ace Chemicals vat is an immunity to all toxins, up to and including fear gas.
But on one world where the Scarecrow's fear toxin has become a permanent part of the atmosphere, it is revealed that John Henry Irons, aka Steel, is immune to the effects of the fear toxin, something that not even Batman can lay claim to.
Aquaman outclasses Scarecrow in every facet of the fight. He's dramatically more physically capable, and his willpower as a seasoned Atlantean warrior makes the efficiency of the gas a tall order. However, what seals Scarecrow's fate is Arthur's own ability to influence the minds of his opponent.
The Joker is immune to toxins and poisons of all kinds. He has been exposed to Joker venom, Scarecrow's fear gas, and a number of other toxins to no effect.
In the documentary I Am Heath Ledger (via Digital Spy) it's revealed that, in order to keep the prosthetics in their place as they got loose when he spoke, Ledger had to lick his makeup to keep it in place, and it ended up becoming part of the Joker's manic personality, as well as his most memorable mannerism.
As such, his most terrifying form—seen in Scott Snyder, Greg Capullo, and Jonathan Glapion's “Death of the Family” arc—feels too visceral to ever become a live-action film. The Joker in “Death of the Family,” spanning Batman (2011) #13-17, brings a tailored sense of terror to Gotham City.
