Colm O'Driscoll

Colm is shown as a lean, elderly man with long grey hair, weathered skin, and gritty stubble on his face. In his few appearances, he is usually seen sporting a somewhat similar outfit to Dutch, albeit in his gang's color scheme, with a black double-breasted waistcoat decorated with gold buttons and a gold watch chain. He wears black trousers, a white pinstriped shirt, a patterned green neckerchief, black finger-less gloves, and a black hat with a snakeskin band.

In an old photo of the O'Driscoll gang, he is seen wearing a long fur-lined coat, presumably saved for colder climates.

From the little in-game dialogue and references to him, he is said to be a very mean, cynical person who does not care about the members of his gang or really anyone else. For example, when he is speaking with Dutch about his brother that he "didn't really like him that much" and yet, still murdered Annabelle in retaliation. According to Kieran, "When he talks to you nicely, it's like the sun is shining and when he's mad at you, it's like the devil is upon you", which ferments his cynical demeanor to even his own gang. He is also shown to have glimpses of intelligence, like when he captures Arthur Morgan, knowing Dutch would come to his rescue, all as a ploy to capture Dutch and turn him in for the reward.

Colm O'Driscoll is said to prefer quantity over quality when it comes to recruitment. In contrast with Dutch who displays genuine compassion and treats fellow gang members as family, Colm treats his own men as expendable pawns and relies on fear to keep them in line.

Despite his sarcastic, snarky demeanor, when he learned his fate was sealed after Arthur, Dutch and Sadie sabotaged his escape plan from an execution, he began to break down in sheer terror, showing his true cowardice and fear to face death itself despite having inflicted it on countless others.

Colm O'Driscoll was a long-time infamous outlaw operating across the Old West. In his earlier days, he had a loose partnership with Dutch van der Linde, a fellow infamous outlaw. The two would go on to found gangs named after them: the O'Driscoll Boys, which Colm founded at some point around 1889,[1] and the Van der Linde gang respectively.

Their uneasy truce eventually turned into bitter enmity when Dutch killed Colm's brother. In retaliation, Colm murdered a woman called Annabelle, who was Dutch’s lover. Ever since these events, Colm’s and Dutch's gangs were involved in a blood feud.

Over the following years, Colm would expand his operations considerably, turning his gang into one of the largest and most powerful criminal organizations in the West. He was arrested and convicted for murder twice but managed to escape on both occasions before he could be hanged.