Seven of Nine

Seven of Nine or Annika Hansen, was a Human female, and former Borg drone, born in 2348.

Early Life
Annika Hansen was born on the Tendara Colony on the June 24, 2348, to human exobiologists Erin and Magnus Hansen. Because her parents moved frequently because of their work, Annika spent a lot of time with her aunt, Irene Hansen on Earth. By the time she was five, Annika was living with her parents on Heronius II. In 2354, Annika and her parents left Heronius II aboard the USS Raven, as they finally had approval by the Federation Council to begin a study of mysterious black cubed ships. After spending many months searching for a ship, the Raven had broken regulations and had crossed the Romulan Neutral Zone. However, just as they were contemplating a return to Earth, they encountered a Borg Cube. After six months of observation, the Raven followed the cube into a transwarp conduit and into the Delta Quadrant. The Hansens gathered a large amount of data about the Borg over the next two years, however it came to an abrupt end in 2356, when the Raven was detected by the Borg and attacked. The Borg pursued the Raven to a planet just inside B'omar space, where the science vessel crashlanded. While her parents were quickly assimilated, Annika attempted to hide, but was later found and assimilated. After several months inside a Borg maturation chamber, the fully grown Annika Hansen was given the designation Seven of Nine and served aboard a cube.

Life in the Collective
In 2368, Seven was briefly disconnected from the hive mind when she and several other drones in her unimatrix crashlanded on Planet 1865-Alpha. Scared of being alone, she injected her fellow drones with nanoprobes and established another collective, before being rescued and re-assimilated.

In 2374, Seven was selected as a liaison to work with Captain Janeway and Lt Com Tuvok as part of the alliance against Species 8472. Their mission was to develop a modified nanoprobe weapon that could destroy 8472 bio-ships and force them to withdraw back to Fluidic Space. After the mission was successful, Seven attempted to assimilate the Voyager crew, but her link to the collective was severed. After many of her implants were successfully removed by Voyager's EMH, her mental and emotional recovery as well as social training was going to be a huge task.

USS Voyager
After several attempts to communicate with the collective, Seven eventually accepted that her place was aboard Voyager as an individual. Earning the trust and respect of Captain Janeway, Seven began to work on several projects to enhance Voyager's capabilities, such as working on a transwarp coil and a slipstream drive, the construction of the astrometrics lab, and the construction of the Delta Flyer class shuttlecraft.

Following Voyager’s return to the Alpha Quadrant in 2378, Seven lived with her aunt, Irene Hansen and joined a Federation think tank.

Academy Lecturer & Federation Advisor
As of 2380, Seven of Nine was an instructor at Starfleet Academy. During the Borg incident of that year, Seven was in contact with the assimilated Kathryn Janeway through her implants. After bringing her concerns to Starfleet and being overruled, Seven went rogue and booked passage with Antin Vargo so that she could reach the derelict Borg Cube. When passage to the cube proved impossible, she instead joined the USS Enterprise-E and its crew so that she could bring her concerns to Captain Jean-Luc Picard. As they proceeded to investigate, the Borg launched an invasion of Earth and demanded that Seven be turned over to them in exchange for the Borg to discontinue their attack. Instead of being returned to the Borg, however, Seven and an Enterprise away team boarded the Planet Killer encountered by the first USS Enterprise over a century prior. Seven bonded with the device and attacked the Borg Cube that was attacking Earth, releasing the virus program devised by Geordi LaForge while in the process. When the Planet Killer was destroyed she was rescued by Vargo.

The following year, she was appointed Federation Deputy Security Advisor by Federation President Nanietta Bacco out of recognition of her unique skills in assessing the Borg threat during their attempted extermination of the Federation and its allies. She frequently clashed with senior members of President Bacco’s cabinet, including her immediate supervisor, Federation Security Advisor Jas Abrik, and Federation Starfleet Commander-in-Chief Edward Jellico. She was present in the Palais de la Concorde Monet Room at the time of the Borg’s near-attack on Earth.

Starfleet Enlistment
While she was teaching in Starfleet Academy in 2380, Seven enlisted with Starfleet with encouragement from Rear Admiral Janeway and Captain Chakotay. She underwent a grueling enlistment process and took a barrage of specialty examinations. Owing to her invaluable contributions to Starfleet and to the Federation against the Borg, the enlistment requirements of time in service were waved. But she had to pass through a review of a board of high ranking non-commissioned officers.

In 2385, Seven was given the non-commissioned Starfleet rank of Master Chief Petty Officer, the highest rank a "non-com" could possibly attain in Starfleet.

Vanguard Command
Immediately after becoming a Starfleet non-commissioned officer, Seven was among those chosen by Jean-Luc Picard to serve onboard the Invincible class Fleet Carrier-Heavy Battleship prototype USS Invincible with the position of Mission Specialist.

As a reputed mission specialist in engineering, astrometrics and stellar cartography, and bridge operations, Seven was given the security clearance of a commissioned officer with the rank of Commander onboard the Invincible. She divides her time between the Astrometics and Stellar Cartography, Engineering, and Main Bridge. On occasions, she is also called on by the FOIC to take stations in the Fleet Operations Center during task force engagements.

Starfleet Performance Evaluation
Despite Seven’s personality seeming to be Vulcan-like, there are differences. At times she shows paradoxical displays of arrogance, warmth, passion, wit, and vulnerability, and the customary curtness of her background as a Borg drone.

Seven’s mode of speech is also subtly distinctive, with her vocabulary and word choice being reflective of her cyborg heritage. Her speech rarely contains contractions.

Seven has a tendency to use highly mechanistic, strict binary (or absolutist) logic. She is largely incapable of perceiving “shades of gray” — something is strictly one way or entirely another. As a result, she never describes anything with emotional terms and separates all knowledge and actions into two categories: relevant or irrelevant.