Werewolf will be rejected to become an Animagus, because becoming an Animagus must have undergone a long process to achieve, since in Harry Potter World, Werewolf would be forced to transform once a month during the full moon, it doesn't meet the requirements of transforming into a Animagus.
However, we know of four unregistered Animagi: Peter Pettigrew (Wormtail), who can transform into a rat, Sirius Black, who can turn into a large, black dog, James Potter, who transformed into a stag, and Rita Skeeter, who becomes a beetle.
They are James Potter, Sirius, Wormtail, Skeeter, McGonagall, Talbott Winger, and an unnamed witch who can turn into a cat. The fact that there are so few Animagi just causes us fans to want to know more about them. After all, they are some of the most unique characters in all of Harry Potter.
Lupin was awarded the Order of Merlin, First Class
He was the first werewolf to ever be given the award, and his tale helped to lift the stigma surrounding the condition, which previously left werewolves cast out by their fellow wizards.
Sirius was an animagus and was able to transform into a big black dog, (a Grim) which is an omen of death, at will. He, along with James Potter and Peter Pettigrew became Animagus to help Remus Lupin with his transformations.
Draco Malfoy
Draco's mother is Narcissa Black, which makes Draco Sirius' second cousin.
It turns out (naturally) that Sirius was framed, and even after their twelve-year separation he and Lupin remain fiercely devoted to each other. By book 5, the two of them are living together in secret.
Nymphadora Tonks, who we first meet in Harry Potter and the Order of the Phoenix, is a Metamorphmagus. She tells Harry that the ability helped her greatly in the Concealment and Disguise in her Auror training.
When James learned what Sirius did, he stopped Snape before he reached the Shrieking Shack, saving his life. Snape, however, had seen Lupin in werewolf form and was sworn to secrecy by Dumbledore.
Harry, returning to the school, looks into the Great Hall and sees Lupin and Tonks lying among the dead. While this is not mentioned in the book, the author has mentioned in an interview since its publication that Tonks was killed by her aunt Bellatrix Lestrange.
Hermione (Raccoon) - very curious, and enjoy inspecting and examining everything. They are also known for high intelligence.
Animagus. Lily's animagus form is a Doe, coupling with her husband, James Potter who is a Stag.
Peter Pettigrew's Animagus form was a rat. Colloquially, a "rat" is a snitch or informant. Webster's also lists the following possible definition: "a contemptible person: such as... one who betrays or deserts friends or associates."
When transforming into an animal in Harry Potter: Hogwarts Mystery, players have three different animals to choose from: a cat, a dog, or a bird.
Known Animagi
Falco Aesalon — Falcon; the first recorded Animagus; the registration system was not in existence in his time.
Maledictuses could transform into animals like Animagi, but were very different: unlike Animagi, they lost the ability to think like a human over time, and they transformed due to a curse, while Animagi had to transform through a potion and through a tough ritual involving the potion.
It is interesting also to note that Harry does not actually kill Pettigrew, but that Voldemort's gift kills him despite Harry's efforts to save him. Pettigrew's death is a reaction to his own attempt to kill, or at least, disable Harry, coupled with Voldemort's distrust of his own lieutenant.
Lupin, played in the films by David Thewlis, was murdered in the battle by Death Eater Antonin Dolohov, while Tonks was killed by Bellatrix Lestrange, leaving their son, Teddy, an orphan. Lupin's death is a sore spot for many fans, who fell in love with the werewolf, nicknamed Moony.
In Harry Potter and the Deathly Hallows: Part 2, Hermione's Stunning Spell sends Greyback off the Viaduct Courtyard to the ravine below and to his death after he was discovered mauling Lavender Brown.
James's Animagus form was that of a stag, which earned him his nickname, Prongs. Strikingly, Harry's Patronus was a stag and his mother Lily's was a doe, a female deer, showing that the family's characters were in harmony and formed part of the same animal group.
Those that are gifted with the power of flight are perhaps more rare than any other wizard that has any other power.
Your Animagus and Patronus animal can be the same
Another pretty complex form of magic, the Patronus Charm, has been known to mirror it, meaning the animal you cast to attack Dementors could well be your inner animal too. Minerva McGonagall's Animagus form, for example, is famously a cat, and so is her Patronus.
Because he couldn't face his guilt and admit to Professor Dumbledore, that he (Remus) betrayed Dumbledore's trust (as the headmaster was the only one-as far as we know- to allow a werewolf in his school, a heaven-sent opportunity) and he didn't conform to Dumbledore's mesures of security (staying put in the Shrieking ...
They had kissed in the past, under mistletoe and at midnight to ring in the New Year. He hesitated for a moment but he could tell that Remus wasn't joking. With a little laugh, Sirius leaned in and kissed Remus soft and fleeting before moving back. “Ah,” was all Remus said before pulling Sirius back into another kiss.