Being the first Potter to enter Hogwarts after the War had been a daunting experience, but James had always had a healthy disregard for public opinion, and was thus best suited for the job. He lacked Albus’ perfectionist tendencies and Lily’s dreaminess - James, just liked his namesakes, arrived with trouble written all over him. With an air of casual arrogance his parents could only attribute to a certain Godfather, James had a knack for charming everyone around him and an incredibly sharp mind to boot.
Sorted into Gryffindor, he went on to become Beater for the Quidditch Team during his years there and graduated to become a Hit Wizard for the Ministry, never having lost a need for a consistent adrenaline rush. His parents never explained to him why his Animagus form brought them to tears - he just figured the black dog was that cute.