Remus John Lupin bio

Name: Remus John Lupin [Moony]

Age: 35/36

House: Gryffindor

Special Abilities: He's a werewolf, though it comes into more of a curse than an ability.

Heritage: Half-Blood

Family: Unknown

First Mention: Book 3, Harry Potter and the Prisoner of Azkaban

Personality: Remus seems to have been the more responsible of the Marauders when he was at school. As a teacher, he seems to be pretty laid back. Unlike Sirius or James, he seems to have also been a studious person, and more calm.

Remus comes to teach at Hogwarts during Harry's third year, in the book Harry Potter and The Prisoner of Azkaban.

In his school days, he was best friends with James Potter, Sirius Black, and Peter Pettigrew. He was one of the four Marauders. (And is believed by some to have been the creator of the Marauder's Map because his name is the first to appear in the message given to Snape.) He was also a prefect when he was at school, an attempt by some of the teachers to keep the other Marauders in line. Dumbledore knew Remus was a werewolf, and still let him attend Hogwarts. The Whomping Willow was actually planted as part of an escape rout for Remus. He would escape to the Shrieking Shack [In Hogsmeade] whenever the full moon came around.

James Sirius and Peter eventually found out about Remus being a werewolf, and made themselves animagi in order to accompany Lupin whenever the full moon was about. Lupin was very grateful that they did that for him, and is a very loyal friend.

The first time we see Lupin is on the Hogwarts Express. He is described as looking very tired and worn out, wearing shabby robes. He wards off the dementors that enter the cabin that he, Harry, Ron, and Hermione are staying in. Harry is a little dubious about Professor Lupin at first, when they're in the compartment. Like when Lupin offers Harry a piece of chocolate, Harry is a bit skeptical.

As Harry's third year progresses, Harry gets closer to Professor Lupin, and he quickly becomes Harry's favorite teacher.

When Harry gets the Marauder's map from Fred and George, Lupin helps him save it from the hands of Severus Snape.

When Lupin stops Harry from killing Sirius, Harry believes Remus is a traitor, as do Hermione and Ron. Hermione then reveals to Harry and Ron that Lupin is actually a werewolf. When the secret about Sirius being innocent is revealed, Lupin is more than ready to kill Peter Pettigrew; had it not been for Harry stopping them.

After they save Sirius, Lupin resigns from Hogwarts; due to the fact that Snape revealed to the Slytherins that Lupin was a werewolf. Harry Ron and Hermione, as well as most of Gryffindor House, are sad to see him leave.

In the fifth book, Lupin arrives at Privet Drive to save Harry from his relatives. He is also part of The Order of The Phoenix. Remus tends to keep Sirius in line when he loses his temper. Lupin stops Harry from going after Sirius when he falls behind the veil in book 5.