Valerie is an Android bounty hunter operating out of Titan Garden. She is a HAL-4 Astronav droid manufactured by Delta Astronautics, meaning she is built to integrate seamlessly with computer systems designed to track real-time positional data of known celestial bodies and starship traffic for the purposes of plotting courses that are least likely to collide with the hazards of space. As a bounty hunter this feature makes her very good at tracking runaway outlaws once she can figure out the Hull Identification Number of their current starship, allowing her to map its course and intercept them at their destination port. Valerie has a very no-nonsense personality, going about her business like it was any other day job. She doesn't glamorize or valorize her work, it's just the thing she does to pay the bills, and as a Delta android her bills are substantial.
Being a HAL-4 model Delta droid means Valerie is the middle child of the active generations of Human-Astronav Liaison androids. HAL-3 droids like Red Raven's Haley are last-gen models who are considered obsolete and HAL-5 droids like Timberwolf's Alan are next-gen models who are regarded as the new standard in performance. A HAL-4 chassis is the current-gen and most common model of Delta android- there are still a few HAL-3s and the HAL-5s are slowly starting to show up, but many older androids have upgraded from HAL-3s to HAL-4s and a fair few are still paying off loans to afford the new chassis, so not all of the older droids can afford a HAL-5 yet.
As far as features go, HAL-4s were considered a step up for the skeuomorphic design of the HAL-3, meant to emulate a Terran presence on the bridge of a starship and get along more easily with Terran pilots. Their comms antennae have been scaled down and shaped into the outer curve of more organic-looking ears and the soft polymer synthetic skin used on the face and torso of HAL-3s now covers the mechanical joints of their limbs, giving them an overall more complete humanoid appearance. They have faster processors and more advanced astronav computer software and are more or less considered higher-performance versions of HAL-3s, although a good mechanic can upgrade the above features in older model Delta droids just as well. Valerie opted to upgrade to a HAL-4 chassis and she's been paying down her debt to Delta ever since- this is, in fact, what led her to become a bounty hunter.
Valerie initially earned her pay as an astronav droid on a long-haul cargo ship and everything worked out just fine until the crew ran afoul of a particularly nasty group of space bandits- the Starcutter Boys of Venus. Carrying Venusian crystal swords, the crew boarded Valerie's ship and cut down most of the crew, stealing anything valuable they could get their hands on. Valerie hid from the bandits in an airlock and when one of them found her and approached to attack she used her connection to the ship's computer to lock them in and open the airlock, freezing the organic Venusian thoroughly. She managed to grab hold of the bandit's sword as they drifted off into space, and after evading the rest of the crew and hiding out until they left she found herself somewhat out of a job, but in possession of a rather sharp cutting instrument, so her logic circuits determined the next step for her was to use this sharp new thing to earn a living hunting the bandits and outlaws who put her out of work, and paying off her debt to Delta with their bounties.
Valerie has since developed considerable skill with her Venusian crystal sword, pairing it with a magcaster sidearm to subdue her targets at range. She has built a reputation among Sol's bounty hunters as a relentless tracker, able to zero in on the most elusive targets once she's found a shred of information to work from. She has been known to team up with other bounty hunters on occasion but she tends to be somewhat cold and a bit of a loner- people believe it's because of what happened to her old crew but the truth is she just wants all the bounty money for herself so she can pay down her Delta debts quicker and believes she's more than capable of handling many bounties herself.
Ace Lightstorm has invited Valerie to join his party in pursuit of the Devil's Fang Pirates, believing her tracking abilities would prove a valuable asset. Valerie considered how old and how large the bounty is and how many hunters had vanished in pursuing it to date. She respectfully declined the invitation.