Mundungus was already scared and wary of the plan, even if he was traveling with such a skilled wizard as Mad-Eye Moody. Mundungus' betrayal caught Moody by surprise and gave Voldemort enough time to cast the Avada Kedavra and kill Mad-Eye Moody.
Voldemort fired a Killing Curse when Mundungus Disapparated, and hit Moody in the face, killing him. Moody fell backwards off his broom, and about a thousand feet to the ground. Because half a dozen Death Eaters were on their own tail, Bill and Fleur could do nothing.
He was disliked and mistrusted by most of the other members due his very poor reputation as a criminal, but was fiercely loyal to Albus Dumbledore after Dumbledore had helped him out of a bit of trouble.
Barty Crouch Jr Revealed | Harry Potter and the Goblet of Fire
Who is the biggest traitor in Harry Potter?
Peter Pettigrew Selling Out His Best Friend
This betrayal had the biggest damage in the series as it made Harry an orphan, sealed Sirius in Azkaban for twelve years, and led to all the deaths shown in the future when the Wizarding War resumed.
However, they all learned the truth in 1994, when Pettigrew was exposed by Sirius Black and Remus Lupin; "Scabbers" was, in fact, Peter Pettigrew, the wizard who betrayed James and Lily Potter to Lord Voldemort.
Although the magical eye was seen as a cameo on the door of Dolores Umbridges office following Moody's death in Harry Potter and the Deathly Hallows: Part 1, there is no indication of Umbridge receiving it as a gift.
He kept Moody alive under the Imperius Curse to continue harvesting hair for the Polyjuice Potion, and to question him about his personality, behaviour and knowledge, in order to make the act more convincing.
Later in the school year, after Cedric Diggory's tragic death, it was revealed that Crouch's enemies shown in the glass were Albus Dumbledore, Minerva McGonagall, and Severus Snape, all notable members of the Order of the Phoenix.
Hedwig's killer is not explicitly identified, so he/she may have appeared in other books, films or video games, but the only known appearance is Harry Potter and the Deathly Hallows and Harry Potter and the Deathly Hallows: Part 1. A popular fan theory based on book canon suggests that Snape may have killed Hedwig.
Harry describes Umbridge to Sirius Black, saying that she's vile enough to be a Death Eater, despite not being one. Umbridge is also depicted to be a prejudiced person, despising half-breeds and Muggle-born witches and wizards to the point of firing Hagrid due to his half-giant birth status.
In Harry Potter and the Deathly Hallows, Fred and George are members of the Order of the Phoenix and serve as two of Harry's six decoys when he escapes Privet Drive. George loses one of his ears to Snape's Sectumsempra curse (which was aimed at a Death Eater's wand hand, but missed).
The injury was caused by Snape's Sectumsempra spell in order to stop the Death Eaters from hurting George (who he thought was Harry) and Lupin, but missed and hit George. Hermione and Kingsley then arrived, both unharmed, followed by Arthur and Fred Weasley, both concerned for George.
Although he wasn't turned into a werewolf, he did develop some wolfish tendencies such as a liking for very rare steaks. He married Fleur on 1 August 1997, although their wedding was disrupted by the arrival of Death Eaters following the fall of the Ministry of Magic.
The reader finds out Dumbledore knew beforehand because he calls in the house elf Winky before Crouch changes back from Moody form. How did Dumbledore know beforehand? He guessed. It involved Harry telling Dumbledore that Barty Crouch Sr.
During the 1994–1995 school year, Barty Crouch Jnr (disguised as Alastor Moody) transformed student Draco Malfoy into a white ferret and bounced him up and down, as punishment for attempting to attack fellow student Harry Potter from behind, earning Draco the nickname of "The Amazing Bouncing Ferret".
Moody's loyalty, caution, and resilience make him an ideal candidate for Hufflepuff House. He also filled “half the cells in Azkaban” with Voldemort's followers during the First Wizarding War, which I would argue makes him a “particularly good finder.”
He's the newest Hogwarts Defense Against the Dark Arts professor, a rough and aggressive man hiding a big secret. After the Triwizard Tournament, Dumbledore, Snape, and McGonagall figure out that he's Barty Crouch, Jr. in disguise, a sadistic and clever Death Eater on a mission to bring Voldemort back to life.
A fake eye belonging to Alastor 'Mad-Eye' Moody, the enchanted device had an electric blue iris and could rotate 360 degrees in the wearer's head. The eye was able to see through anything, including the back of Moody's own head and even invisibility cloaks, and was the reason that Moody became known as 'Mad-Eye.
Peter Pettigrew — the man did a full 360. He first betrayed the Potters to Voldemort, and then later betrayed Voldemort by showing even just a brief moment of mercy to Harry at Malfoy Manor.
MASS BREAKOUT FROM AZKABAN was a Daily Prophet article about the 1996 mass breakout from Azkaban, in which ten Death Eaters, including Bellatrix Lestrange, Antonin Dolohov, and Augustus Rookwood, were able to break out of their cells with the help of the Dementor guards, who had switched sides and were following Lord ...
Peter Pettigrew, the Secret Keeper for the Potter family who betrayed them to Voldemort. Sirius Black was originally meant to be the secret keeper for James and Lily Potter, but Sirius thought Voldemort was on to him (he thought that Remus Lupin was a spy), therefore passing on the Secret Keeper to Peter Pettigrew.
