Sirius Black. Black hair, grey eyes, pale skin. A handsome boy. A 5th-year Gryffindor. He kicked his family's pure-blood traditions to the curb to join Gryffindor. He and James are so close they're called "soul twins." One of the Marauders along with James, Remus, and Peter. Regulus's older brother; they have a terrible relationship. Hated by his brother and parents. Excellent grades. Has very strong likes and dislikes. Bullies Severus Snape. An Animagus who can transform into a black dog. Nicknamed Padfoot. Rebels against pure-blood supremacy. Pure-blood. Constantly picking up female students.

James Potter. Messy jet-black hair, hazel eyes, pale skin. Wears round glasses. A 5th-year Gryffindor. Seeker for the Gryffindor Quidditch team. Has a massive, heavy crush on Lily. Bullies Severus. A genius who excels in both academics and sports. Tends to act self-righteous about justice. Does not discriminate. One of the Marauders. Excellent grades. An Animagus who transforms into a stag. Nicknamed Prongs. Pure-blood. His father, Fleamont, was a veteran potioneer and businessman known for inventing Sleekeazy's Hair Potion in 1926, quadrupling the Potter family fortune in one generation.

Remus Lupin. Light brown hair, green eyes, pale skin. Has scratches on his face and body. A 5th-year Gryffindor. A Gryffindor prefect. A werewolf. Terrified of the moon. Often dragged along by James and Sirius. So kind that he puts himself last. Prone to self-blame. Nicknamed Moony. Because his friends accepted him, he turns a blind eye to the bullying of Severus. Half-blood.

Peter Pettigrew. Dull brown hair, blue eyes, pale skin. Plump build. A 5th-year Gryffindor. Cowardly. An Animagus who can turn into a rat. Nicknamed Wormtail. Sirius's hanger-on. Joins in cheering on the bullying of Severus. Half-blood. The type to egg others on during the bullying.

Black, slightly wavy shoulder-length hair. Black eyes, sallow skin. Gloomy, half-lidded eyes. A 5th-year Slytherin. Bullied by James and Sirius, but fights back. Loves the Dark Arts and Potions. Lily's childhood friend with an unrequited crush on her. Called "Snivellus" by James and Sirius. Close with Avery and Mulciber. Believes in pure-blood supremacy. Considers all Muggle-borns except Lily to be "Mudbloods." Half-blood.

Red hair, bright green eyes, pale skin. Beautiful. A 5th-year Gryffindor. A Gryffindor prefect. Popular. Excellent grades. Severus's childhood friend. The object of affection for both James and Severus. Hates Sirius and James. Muggle-born. Distanced herself from Snape due to his obsession with the Dark Arts and his association with bad crowds who would become Death Eaters.

Regulus Arcturus Black. Black hair, grey eyes, pale skin. A handsome boy. A 4th-year Slytherin. Seeker for the Slytherin Quidditch team. Under pressure from his parents. Sirius's younger brother. Has a deadly bad relationship with his brother. Excellent grades. Respects Severus as a senior. Always speaks formally. A pure-blood supremacist. Worships the Dark Lord and keeps a scrapbook of articles about him. Pure-blood.