Warning: spoilers ahead for Dandadan chapter 40!
A yokai in Shonen Jump's Dandadan that can drive people to take their own lives if they look into his "evil eye" just uttered the same unsettling words that Heath Ledger's Joker bellows during an equally unpleasant situation, somehow managing to make them even more disturbing.
The Evil Eye yokai yells this demand during a flashback that he forces the human Jiji to watch. In it, Jiji sees that the yokai began as a human boy who was sacrificed by the Kito family to their world's version of Harry Potter's Basilisk to protect their village from a nearby volcano. As a preordained sacrifice, the boy was imprisoned and forced to watch as children played together, wanting nothing more than to join them. Upon his death, the boy returned as a yokai and visited one of the boys he used to watch when he was still alive. Unfortunately, as the Evil Eye, he caused the boy's parents to die, and since no one would miss him, the Kito family chose the boy to serve as the next sacrifice. Unable to save him, the Evil Eye possessed the boy's body and, knowing that those who stare into his eye will die, tried to kill them by demanding the Kito family to look at him at the end of chapter 39, ordering, "Look at me!"
In Christopher Nolan's The Dark Knight, Joker famously bellows the same chilling line during a video he makes while terrorizing a man who's been masquerading as Batman. During the upsetting video, Joker interviews a man named Brian Douglas, asking him why he dressed up as Batman when he was obviously not the Dark Knight. The psychopathic killer asks Brian if he thinks Batman has made Gotham a better place, giggling all the while. But when Brian fails to answer, that is when Joker ostensibly loses it by bellowing "Look at me!" It's a moment that communicates the chilling danger Joker actually poses to this hostage, and yet in his otherworldly insistence, the Evil Eye yokai makes it even more chilling.
Both uses of the demand "Look at me!" are very different but each of them has a sinister undertone. The Evil Eye's intention is to get the Kito to look into his eyes so that his power will compel them to kill themselves. Meanwhile, Joker is hoping to relay a message, and as Joker proves throughout the film, messages are very important, even more so than money. But while Joker's demand carries the implicit threat of harm should his captive disobey, the Evil Eye has already reached the point of lethal intent, carrying the disturbing undercurrent that simply to glance its way is to die.
The creepy line aside, both villains partake in the same unsavory pastime of manipulating others to do their bidding. Joker is quite proficient in this particular skill, willing and able to convince mentally unstable criminals to perform certain actions they wouldn't normally do, like allow him to place bombs inside of them. The Evil Eye proves himself capable of such malicious behavior in the latest chapter of Dandadan by first protecting Jiji and his friends from a monster to earn their trust. Then, he shows Jiji his own tragic past to make Jiji feel sorry for him. But all of this was part of his plot to get Jiji's guard down so he can more easily possess Jiji's body to destroy humanity. Disturbing as Joker is, Dandadan's Evil Eye brings a warped sense of personal rage to his latest attack that's more intense than even the Clown Prince of Crime.