It's been a while since I played, so I don't have any epic biographies of my heroes and villains. I do, however have some shorter tales, which pass the time with a bottle of second-best and a rat roasted over a campfire.
There was the infamous "Captain Shotgun", an Orlock ganger who took a lasbolt to the head. He was never quite the same after that; Half the time he was a frothing lunatic, who could take out half an opposing gang by himself, beating them down with the butt of his gun. The other times, he'd just stand there, trying to work out which way round the shells went into the weapon. He never did actually shoot that shotgun after his injury, but if anyone tried to take it away from him, his eyes went all funny; no-one ever tried twice.
Then there was the battle I witnessed between Orlock and Escher gangs, fighting over a newly-revealed dome. Well, a pair of Juves, one from each side, ended up face to face. Sure, they claimed afterwards that they were trying to kill each other, but they were there for a good long while, and that didn't look like no fightin'.

Last I heard they'd headed downhive together...
Or the Escher Juve who took out a genestealer in hand-to-claw combat. It was her first battle. "take this revolver, here's a handful of bullets. Make sure no-one gets round behind big Jenny while she's busy with that stubber, and if you do a good job, we'll see about something better. It'll make a woman of ya". Well, all was going well, apart from the odd stray shell casing from Jenny's stubber hitting her in the side of the head, until this monstrous purple ... thing leapt out of a pipe and ran at her. Luckily for her, it tripped over a broken cable run and slid to a stop at the Juve's feet. The only round she fired in that battle went right between its eyes. Now she's got her own gang, and the most impressive necklace I've ever seen.