Severus Snape would see himself with Lily Evans in the Mirror of Erised. Ever since he laid eyes on her playing with her sister on the swings, he was in love. He wanted to always be there for her, protecting her from the horrible things in the world.
Draco just wanted his father's acceptance. He would most likely see Lucius being proud of him in the Mirror.
During their very first conversation in Harry Potter and the Sorcerer's Stone, Dumbledore tells Harry that he sees himself holding a pair of thick, woolen socks when he looks in the Mirror of Erised.
Hermione Granger
According to her, and going back to 1997, Hermione would have seen Voldemort defeated and dead (just like Harry did), herself and her friends alive and well, and herself in a romantic embrace with Ron. Luckily for her, all those desires came true.
Feeling unremarkable and always overshadowed by his talented older brothers, when Ron peers into the Mirror, he sees only himself, as Quidditch captain and Head Boy, standing completely on his own accomplishments.
Luna will see her mother and father with Luna. Luna's mother died, and Luna loved her mother.
She probably sees herself next to Voldemort, being his Dark Consort. They are ruling the wizarding world together and are ruthlessly torturing Muggles and/or Mudbloods.
He does not have a patronus, and has never been able to cast the spell.
Dumbledore sees Grindelwald, both as a young man and the older Dark Wizard, in the Mirror of Erised because he never stopped being in love with him and always hoped they could be together, which is why he was reluctant to fight him for years (he won't face him until 1945).
Voldemort's desire to beat death and become immortal was also why he and Quirrell ended up slaying innocent unicorns. Drinking the blood of a unicorn would keep someone alive – even if they were an inch from death. However, it is considered an act of evil to kill something so pure.
After the followers leave, Grindelwald cradles the baby until he slits its throat and sees visions of the future in its blood. This is witnessed by a horrified Queenie Goldstein (Alison Sudol).
"Dumbledore fell in love with Grindelwald" and was "blinded" by it. "This was Dumbledore's tragedy."
Harry is the magical Heir of Gryffindor (and he's also a descendent of Godric), Neville of Hufflepuff, Hermione of Slytherin and Luna of Ravenclaw. (It was due to Dumbledore's manipulations that Neville and Hermione hadn't been put into the correct House.)
Why is Harry carrying around a mirror shard? The mirror shard was a gift from Sirius given to Harry in “Order of the Phoenix.” The mirror is part of a set that allows people to communicate with each other. After Sirius' death, Harry put it in his school trunk and forgot about it.
Harry realizes he saw Quirrell at the Leaky Cauldron on the day that someone tried to rob Gringotts. While Quirrell's puzzling over the Stone, Harry realizes that he can also use the mirror to figure out where the Stone is. But because he's tied up with magic rope, he falls over.
Fitting with the secrecy Dumbledore maintained around Harry, author J.K. Rowling later revealed that, at that stage of his life, Dumbledore actually saw his own family, especially his dead sister Ariana.
Grindelwald was infatuated with Dumbledore. Both ingenious wizards with somewhat extreme ambitions, the two became inspired to find the Deathly Hallows and lead a revolution that would destroy the International Statute of Wizarding Secrecy, allowing wizards to rise as benign worldly overlords.
In this game, it becomes clear that Draco Malfoy's Boggart is Lord Voldemort. Draco's fear of Voldemort likely comes from different reasons than others have. Most fear Voldemort taking over the world. Draco fears Voldemort intimidating and manipulating the Malfoy family.
1 Albatross
As the rarest Patronus in the Wizarding World possible, the Albatross represents an enormous bird that flies freely across any sea. This rare Patronus represents those who are simultaneously fearless, optimistic, happy-go-lucky, and ambitious.
Foxes are cunning, resourceful and fiercely intelligent – remind you of anything? That's right – we wouldn't be surprised if some members of Slytherin house find themselves with a fox Patronus. Foxes are also highly adaptable and can live in many diverse habitats around the world.
1 Harry Potter's Stag
Harry's Patronus, a stag, is certainly the most prominent in the series (and among the best Patronuses in the Wizarding World), as well as the strongest Patronus in the films. Unlike many wizards, he could produce his Patronus at the age of thirteen, with guidance from Remus Lupin.
Draco's refusal to reveal Harry's identity to Bellatrix was not because he liked him. It was because he believed that Harry was the only chance they had at defeating Voldemort. At first, Draco admired and revered Voldemort until he threatened his family's safety.
Harry Potter and the Deathly Hallows
In this book, Rowling reveals that Bellatrix is the guardian of Helga Hufflepuff's cup (though she is unaware that it is a Horcrux), which Voldemort has entrusted the Lestranges to keep in their Gringotts vault.
He has grown afraid of Harry's connection to Voldemort. Perhaps Voldemort, knowing Dumbledore's love for Harry, would possess Harry and provoke Dumbledore to kill him. So, Dumbledore attempted to avoid Harry throughout Book 5 for Harry's own good.
In The Deathly Hallows Part 2, they discovered that Dumbledore's brother, Aberforth, had the rest of the mirror. Aberforth admitted that he got it from Sirius Black's house via Mundungus Fletcher and had been keeping an eye on Harry on his journey to find Voldemort's Horcruxes.