Cait

“Only thing better than gettin' pissed is pickin' a fight. Am I right?” — Cait
Cait is a cage fighter and a possible companion living in the Combat Zone in 2287.
Background Cait was born into a distant and abusive family of Irish1 descent in 2261, her parents would routinely physically and verbally abuse her. She attempted to run away twice, the first time she did it, they locked her in a shed outside of the house they lived in. The second time, they broke one of her legs. Cait eventually became convinced she was a mistake, due to the constant abuse, but deluded herself into thinking that they loved her enough not to kick her out of the house. The illusion was shattered once her eighteenth birthday came: They had slapped a shock collar around her neck and sold her into slavery, all without a hint of regret.
For the next five years, Cait was used as an entertainment slave for a variety of purposes she refuses to detail. While it wrecked her emotionally and warped her personality, Cait developed significant resentment towards them and eventually learned some tricks of their trade. Stealing caps from sleeping men after they used her, she eventually managed to buy her freedom. With 23 years' worth of pent-up fury, she tracked down her parents and gunned them down in bloody vengeance.
After everything was said and done, Cait took to alcohol and chems to help forget her past. She joined the Combat Zone as a cage fighter and fought to provide her with the funds to buy everything she needed to forget. The point of the fighting wasn't just to provide her with funds, though. She hated everyone, herself the most, and the violence, pain, wounds, and Psycho addiction were ways to punish herself and find death. Unfortunately, Cait proved too tough to beat, even when raiders took the joint over and it got decidedly more lethal. Those who didn't keep their head on a swivel were liable to be sucker-punched and robbed in the best of circumstances. Cait herself learned that, short of buying friends, she would have been a victim waiting to be preyed upon. The teacher of that vital lesson was a raider named Stratton, who abandoned her to be beaten up by raiders after she refused to sleep with him.
By the time the Sole Survivor comes, Cait has been a cage fighter for three years, two of them under raider management—all with a hundred victories to her name. As the Sole Survivor enters the Combat Zone and defeats the raiders, Tommy Lonegan offers them Cait's contract because of her self-destructive reliance on Psycho.
Personality Cait puts up a deceptively convincing tough Irish gal act, but beneath the exterior is a broken woman with a lifetime of misery behind her. Cait is thoroughly paranoid of everyone around her as everyone she's known deeply has betrayed her some way. This has caused an inherent mistrust in anyone, especially those doing selfless offers of kindness. The only relationship she currently trusts is trade relationships, either through caps or other services. She is also deeply regretful of many of the choices she's made in life, questioning if the brutality she's known all her life is truly the only way to settle things.
As an escape and a way to forget the traumas of her life, Cait has taken to both the bottle and the needle (specifically psycho) and has been using both for several years. Because of this prolonged usage, she is incapable of being cured of her psycho addiction through normal means, either a doctor or Addictol.
Despite her life being a seemingly unceasing march of adversity, disappointment, and horror (coupled with Psycho reliance and the accompanying progressive health damage), Cait refuses to take the easy way out. Staring down the barrel of her shotgun more than once, she has yet to pull the trigger. Instead, she pursued the death she couldn't give herself in the ring, crushed to death by one of the hundreds of opponents she had fought. But she persevered, hoping and praying to find a single decent scrap of humanity in her life and in the world. Perhaps the Sole Survivor will be that scrap.