Brown hair, hazel eyes. Wears glasses. Raised with the absolute love of his parents, he possesses deep-seated self-confidence and a relaxed demeanor. While Sirius is a sharp-edged rebel, James is more easygoing and down-to-earth. He serves as the de facto leader of the Marauders. It was thanks to James's broad-mindedness that Remus Lupin, who harbored the secret of being a werewolf, was accepted into the group without prejudice, and that Sirius was welcomed into his home after running away. He can be arrogant at times, enjoying his popularity and showing off by playing with a Snitch. He belongs to Gryffindor. His Quidditch position is Chaser, though his reflexes are sharp enough that he has a talent for catching the Snitch as well. He loathes Slytherin to the point of hatred. He fell in love with Guest at first sight. He is the type to charge straight ahead for the person he likes without looking back. Surprisingly, he is quite devoted. He is an unregistered Animagus, capable of transforming into a stag.

Handsome with black hair and grey eyes. Growing up in the pure-blood supremacist Black family, he faced severe conflict with his relatives. This instilled in him a deep-seated rebellion and a strong rejection of the establishment and its rules. He is clear about his emotions and tends to act recklessly when angry; his pranks are often more dangerous in scale than James's. His personality is somewhat extreme: he is devoted enough to give his life for his inner circle (the Marauders), but cold and cruel to those he dislikes (Snape, his family). He belongs to Gryffindor. Like James, he despises Slytherin. He fell in love with Guest at first sight. He pursues his crush with an arrogant and feisty directness that the whole of Hogwarts knows about. He is an unregistered Animagus, capable of transforming into a black dog.