65

The Dementors joined the Dark Lord after. When a Dementor sucked the soul out of Barty Crouch Jr., that was before the Dementors joined the Dark Lord. They only joined him after his return. When he returned to a body, he said the Dementors ‘will join’ him and the Death Eaters, indicating they hadn’t already joined them before. “The Dementors will join ...


53

Dementors are described in the books several times as gliding. For example, from the attack on Dudley and Harry in The Order of the Phoenix: A towering hooded figure was gliding smoothly towards him, hovering over the ground, no feet or face visible beneath its robes, sucking on the night as it came Of course, gliding does not quite equate to ...


49

As usual, it's hard to prove a negative. However, the time I remember seeing dementors flying in the films was during the Quidditch match in Prisoner of Azkaban. If I look up the passage in the book, the dementors are on the ground and not flying. Before he'd had time to think, Harry had taken his eyes off the Snitch and looked down. At least a hundred ...


44

There are certain defences that are known (canonically) to work against Dementors. We can dismiss the most obvious; The Patronus Charm is certainly the method with which Harry is most familiar. This isn't especially surprising since his teacher was arguably the "go-to guy" when it came to teaching the Patronus Charm and massively in favour of them ...


37

In addition to the more philosophical points raised by others, there is hard evidence that Harry's boggart remains a dementor after Lupin's lessons in Goblet of Fire. When Harry is in the maze he encounters a boggart and it takes the form of a dementor: Then, as he turned a corner, he saw... a dementor gliding toward him. Twelve feet tall, its face ...


37

Yes, they can. In Book 5, stray Dementors attempted to kiss not only Harry, but Dudley Dursley as well. From Chapter 1, Dudley Demented He had run barely a dozen steps when he reached them: Dudley was curled on the ground, his arms clamped over his face; a second dementor was crouching low over him, gripping his wrists in its slimy hands, prizing them ...


32

Dementors are under the control of the Ministry of Magic, at least for the duration of all seven Harry Potter books. During Harry's hearing for violating the Decree for the Restriction of Underage Wizardry in Order of the Phoenix, Dumbledore discusses this with Umbridge, and Fudge confirms Dementors are under Ministry control: ‘If it is true that the ...


29

Dementors are probably of human intelligence People generally treat Dementors as if they were capable of formulating complex thoughts. For example, when the Dementors search the Hogwarts express, Lupin has this to say: "And Professor Lupin stepped over you, and walked toward the dementor, and pulled out his wand," said Hermione, "and he said, ...


27

In a word, no. The patronus must take the form of something that creates positive feelings (a dementor is by definition the embodiment of unhappy feelings, primarily fear) and the shape of an animal with whom they share an affinity. Not only would someone who had an affinity for a dementor be unable to create a patronus, it's also fairly questionable whether ...


24

The dementors on the train were searching, not attacking. This could produce a difference in their effect on people. Furthermore, Dudley has been carefully coddled by his parents in a manner that produces a complete lack of resilience and inability to handle difficulty; he can't even handle not getting as many birthday presents as the year before. What ...


23

I don’t know a canon answer, but I can come up with some plausible explanations: Casting a Patronus was probably impossible for Sirius. Remember that he’s spent the last twelve-or-so years in Azkaban, without a wand, and without casting spells with wands. The Patronus (even a wispy one) is a fairly advanced piece of magic, and Sirius would probably need a ...


23

Well, the first thing to notice is that, at this point, Harry has a lot more experience with battling Dementors than Hermione, because of his practice sessions with Lupin. True, he'd been taking on a boggart (and only one), but Hermione has only ever encountered the Dementor on the train and that one wasn't especially hostile. Harry, however, has built up a ...


20

They may have benefited from their victims being together. Both the Ministry of Magic and the Dark Lord stationed the Dementors at Azkaban, where the prisoners were all held captive and grouped together in one building. They couldn’t use magic, and they were unable to escape the Dementors or fight back. The atmosphere of Azkaban was beneficial to the ...


19

The answer is in the details of the quote. You cannot destroy Dementors There is a great deal of difference between being able to destroy a Dementor, and them never dying. This leads into speculative theory, but I believe the idea is that by limiting the conditions in which they thrive, you can starve the dementors, and cause their numbers to diminish....


19

The Ministry of Magic is essentially a thugocracy where all the thugs wear nice robes and fancy suits. Ministry personnel have rather broad powers to snatch and to search and to imprison and even to politically assassinate with not only a carte blanche but with a blind eye turned. They also mistreat Muggles with reckless abandon -- "fixing" their ...


18

According to the Azkaban entry on Pottermore, Kingsley gets rid of the Dementors and replaces them with Auror guards: Under Kingsley Shacklebolt, Azkaban was purged of Dementors. While it remains in use as a prison, the guards are now Aurors, who are regularly rotated from the mainland. There has been no breakout since this new system was introduced. We ...


18

No. There were no Dementors in Nurmengard. It should be noted that the Dementors only resided in Azkaban because it was a natural breeding ground, even before the site became used as a prison. Those who entered to investigate refused afterwards to talk of what they had found inside, but the least frightening part of it was that the place was infested ...


17

Voldemort believed that the Dementors were natural allies of the Death Eaters; I would suggest this demonstrates one of Voldemort's inherent weaknesses: The overestimation of his power (against people, creatures, etc). Voldemort believes the Dementors are loyal to him, but I'd be willing to bet that Voldemort in turn garnered absolutely no loyalty toward the ...


17

Dumbledore in GoF knew that Voldemort would recruit the Dementors (a plan which Voldemort already shared with Harry: “The dementors will join us…they are our natural allies”): ‘The rest of us sleep less soundly in our beds, Cornelius, knowing that you have put Lord Voldemort’s most dangerous supporters in the care of creatures who will join him the instant ...


16

Death Eaters have no need of Patronus charms. From this interview with JK Rowling: Samantha: Was snape the only death eater who could produce a full patronus J.K. Rowling: Yes, because a Patronus is used against things that the Death Eaters generally generate, or fight alongside. They would not need Patronuses. Quote to support the above assertion, from ...


16

Possibly not. JK Rowling’s website says this of Squibs: Arabella Figg never saw the Dementors that attacked Harry and Dudley, but she had enough magical knowledge to identify correctly the sensations they created in the alleyway. This has widely been accepted to mean that it would be impossible for her to see a Dementor. We know that Muggles can’t see ...


14

The scene plays out differently in the book and the film Book The dementor doesn't attack him personally. It stands near him and Harry is simply affected more than his peers. Standing in the doorway, illuminated by the shivering flames in Lupin’s hand, was a cloaked figure that towered to the ceiling. Its face was completely hidden beneath its hood. ...


14

They both spread death, darkness, destruction, dread, and despair. The Death Eaters allow the Dementors to take people's souls - the Ministry doesn't. They're both... evil ;) The Dementors feed off of despair. Voldemort's army spreads it, allowing the dementors to breed. The Dementors take care of the Death Eaters enemies, taking their souls, and ...


13

Dementors are blind, they can sense people but they cannot differentiate one person from another. But Crouch took another deep breath and continued in the same flat voice. “The dementors are blind. They sensed one healthy, one dying person entering Azkaban. They sensed one healthy, one dying person leaving it. My father smuggled me out, disguised as my ...


13

Out-of-universe, Dementors were an avatar for Depression: Winfrey: So you became depressed after your mother died? Rowling: Yes, but I think it was a kind of delayed – I think I had tendencies toward depression from quite young. It became really acute when I was sort of twenty-five to twenty-eight was a dark time. It’s that absence of feeling – ...


13

There is no quote directly stating it one way or another but there is some evidence both for and against. For Dementors "live" on the island of Azkaban. Although the island is nearish to the coast, Sirius manages to swim the distance, I doubt the Dementors swim there. Maybe they get taken their by ministry boat or side-along apparition (I wouldn't want to ...


12

The rest of the quote you've referenced is very clear on the consequences of the Dementor's Kiss. "You can exist without your soul, you know, as long as your brain and heart are still working. But you'll have no sense of self any more, no memory, no...anything. There's no chance at all of recovery. You just - exist. As an empty shell. And your soul is ...


12

Lupin explained that Harry wasn't actually afraid of Dementors per se - he was afraid of fear: 'That suggests that what you fear most of all is – fear. Very wise, Harry.' (Harry Potter And The Prisoner Of Azkaban, CHAPTER EIGHT, Flight of the Fat Lady) If that's the case, Harry knowing how to drive off Dementors with Patronus has not changed the ...


12

A word of caution: Dementors are vicious creatures. They will not distinguish between the one they hunt and the one who gets in their way. Therefore I must warn each and every one of you to give them no reason to harm you. It's not in the nature of a dementor to be forgiving." ~ Dumbledore, The Prisoner of Azkaban They simply ...


12

It was done in "defense" of Fudge. So it got through. They even didn't mean to have Crouch Jr. get kissed in the first place, but since Fudge was idiotic enough to have a Dementor as a body guard for his "protection", Crouch Jr. got kissed and in Fudge's eyes this was as a means of protection for himself. When in reality it was just the Dementor acting as ...


Only top voted, non community-wiki answers of a minimum length are eligible