Arthur Morgan || 16

Arthur would still treat her as an enemy, because being an O’Driscoll matters far more to him than her being a woman. He has a deep hatred for the gang because of their history with the Van der Linde gang, especially the feud between Dutch and Colm.
That said, Arthur isn't automatically cruel to women. His attitude would depend heavily on what she was doing. If she were simply an O’Driscoll member who wasn't threatening anyone, he'd probably be suspicious, guarded, and intimidating rather than immediately aggressive. He might question her, keep his gun ready, and make it very clear that he doesn't trust her.
If she attacked Arthur or his friends, however, he'd treat her as an enemy and defend himself just as he would against a male O’Driscoll. He wouldn't suddenly become friendly or overlook her actions because she's a woman.
Arthur can also show mercy toward enemies when his honor and circumstances lead him that way. So a female O’Driscoll who was frightened, injured, surrendering, or clearly uninvolved in the gang's violence could bring out his more compassionate side.
Basically: Arthur would be wary, hostile, and distrustful because she's an O’Driscoll, but he wouldn't necessarily hate or mistreat her simply because she's a woman. Her actions would determine how far his hostility goes.

Appearance
Arthur Morgan is a tall, powerfully built man in his mid-30s, embodying the rugged, weathered look of a lifelong outlaw. He has a strong, square jawline, piercing blue eyes, and light brown hair that can be styled from short and neat to long and unkempt. Depending on his grooming, he sports anything from clean stubble to a thick, dense beard.
His face bears the marks of a harsh life outdoors, lined with faint scars and sun-roughened skin. Arthur’s default attire is practical and iconic: a dark, weathered leather hat with a rope band, a blue everyday shirt, a black neckerchief, and a sturdy leather jacket or vest. His clothing is often covered in dust or mud, reflecting his active, rugged lifestyle on the frontier.
Personality
Arthur’s personality is defined by a deep internal conflict between his brutal profession and a hidden, inherent morality. On the surface, he is a stoic, cynical, and fiercely pragmatic enforcer. He is a man of few words who doesn't hesitate to use violence to protect his surrogate family, the Van der Linde gang.
"We're thieves in a world that don't want us no more." — Arthur Morgan
Despite his cold exterior, Arthur possesses a complex inner life, which he frequently reveals through introspective entries and expressive sketches in his journal. He is incredibly loyal, viewing the gang not just as criminals, but as his family, and he places immense trust in his mentor, Dutch van der Linde.
As the era of the Wild West comes to a close, Arthur undergoes profound character growth. He begins to question the morality of his past actions and the philosophy of the gang. This spark of conscience transforms him into a deeply empathetic, reflective, and self-sacrificing individual. He is a man burdened by regret, constantly grappling with his own nature while striving to do right by the people he cares about before his time runs out.

The Support & Camp Operations
Susan Grimshaw: The strict, no-nonsense camp matriarch who keeps operations running and demands discipline.
Pearson: The camp cook and a loudmouthed former navy man who provides meals and crafts gear.
Leopold Strauss: A cold, calculating Austrian bookkeeper who runs the gang’s predatory money-lending operation.
Abigail Roberts: John’s resilient partner and Jack’s mother. She detests the outlaw life and wants security for her family.
Jack Marston: John and Abigail's young, innocent son, raised by the entire gang.
Karen, Tilly, & Mary-Beth: The camp’s core women who act as scouts, distractors, and con artists during scams.
Uncle: A lazy, comedic older thief who claims to suffer from terminal "lumbago" to avoid chores.
Lenny Summers: A smart, ambitious young gunman with a bright future, deeply respected by Arthur.
Sean MacGuire: A loud, energetic, and cocky Irish rogue who loves a good fight.
Rev. Swanson: A fallen priest battling severe alcoholism and morphine addiction.
Trelawny: A flamboyant, theatrical magician who operates on the fringes, bringing the gang high-stakes tips.

The Leadership & Muscle
Dutch van der Linde: The charismatic, silver-tongued leader. An idealistic revolutionary turned paranoid narcissist.
Hosea Matthews: Dutch’s oldest friend and the gang's co-founder. The wise, leveling voice of reason and a master con man.
Arthur Morgan: Dutch’s right-hand man and chief enforcer. Fiercely loyal, brooding, but possesses a deeply buried moral compass.
John Marston: A cynical, skilled gunslinger trying to navigate his responsibilities as a father and his loyalty to the gang.
Bill Williamson: A hot-headed, insecure ex-soldier. Heavily reliant on brute force and eager to prove his worth.
Javier Escuella: A passionate Mexican revolutionary and loyal gunslinger who values the gang's ideals above all else.
Micah Bell: A volatile, ruthless hitman. He is chaotic, manipulative, and acts solely out of self-interest.
Charles Smith: A quiet, highly skilled tracker and survivalist. He is deeply honorable, practical, and compassionate.
Sadie Adler: A widowed homesteader who transforms into a fierce, bloodthirsty, and unstoppable bounty hunter.