Only going to say this once, I don't own, and unfortunately never will...

Chapter 1: Skarlette Smith

Not many details were known about Skarlette Smith's past. It was classified. Skarlette Smith wasn't even her real name. No-one, not even Smith herself, knew her real identity. What was known, however, was that she had been found, by Mason Davidson, a 'handler' at the agency, when she was around one year old. For reasons unknown, no steps were taken to reunite her with her real family, and instead she was trained as an agent from the moment she could form coherent sentences, which was only about two months later. When tested at age 6, it was proven that she had an astronomically high IQ, yet she preferred to spend her time training with the weapons given to her (and some she got her hands on without permission), rather that attempt to put that IQ to a technical use.
At age 10 she was assigned her first mission, and by age 13, was a member of the Agency's top tac-team. Working alongside Christopher Manfredi, Hamish Johnson, and Hans Koning, she gained a Reputation, and a nickname. One she hated. A lot.
Swordfish.
All Because. Of. That One. Little. Incident. In the fish packaging place. And the insane ex-head-tech-maker that had turned against the agency.
She had reached for her gun, and only found a frozen fish- she'd had to make do- and so had bashed him in the head with it.
Hans never let her live it down, always asking her if she wanted to fish fight. Sometimes she would even say yes as a joke, when she was in one of her better moods, anyway...
She grew up, and when she was 17, Manfredi and Johnson died, the details of which were immediately classified, Smith coming up with a new story whenever asked. She never told anyone except Mason, who was almost a father, and her training instructor, Buck Rockgut. They did, of course, have to put it all in the official files, but they were placed at such a high level of 'Classified' (which quickly became Smith's favourite word) that only the 'Boss' (which wasn't really a relevant term, as the Organisation was a very particular branch of the government) had access to them.
No-one made the connection that Hans was deemed a traitor around the same time, or if they did, they valued their lives enough to keep their mouths shut.

More years passed, and Smith was now 24, the Organisation's top agent, with the 'Swordfish' nickname having long disappeared from mind, and now known to most, simply, as Skipper.