Serina

Serina (AI Serial Number: SNA 1292-4) was a UNSC "Smart" AI that was assigned to the, a modified commissioned by the UNSC Navy. Serina's avatar is a young woman with long hair and she speaks with a distinct British accent.

Biography
After her creation on January 7, 2530, Serina replaced the previous shipboard AI of the Spirit of Fire. During her service aboard the Spirit, Serina and Nurse Lulu Hershey started to have "girly" discussions together during the latter's night shifts in the ship's medical bay.

During 2531, Serina was present in the final battles of the Harvest Campaign, the Battle of Arcadia and the Battle of Shield 0459, providing the crew with intelligence on the various situations they encountered. After the destruction of the Shield World, Serina, along with the rest of the crew of the Spirit, were left stranded far beyond human-controlled space without a Shaw-Fujikawa Translight Engine. An unspecified time after the battle, Serina woke Captain Cutter up, stating that "something had happened".

Personality
Serina has a very sarcastic and detached nature. She frequently seems to disregard the lives of others, even her own ship's crew - such as when the Spirit of Fire was slowly being pulled inside the Shield World - almost always responding to their peril with some curious remark or dark joke. Although prone to sarcastic comments and exhibiting a seemingly uncaring attitude, she is more compassionate than she seems.

She also appears to have a fascination with human relationships. Knowing the crew of the Spirit of Fire may be on a one-way trip, Serina manufactured and delivered fake emails from family members to the crew celebrating Valentine's Day. No one ever suspected her of this deception.

Serina also has several fragments of memories from her donor. Several of these memories include food, the smell of flowers, the feeling of grass on her feet, and a lot of other little moments. Relating to this during her free time, she tries to remember what chocolate tastes like, with little success. She also runs detailed simulations based on the memory she kissed a boy.

Trivia

 * Serina was voiced by Courtenay Taylor, who also voiced an Army trooper in Halo: Reach.
 * Serina's line "Spinning up FTL drive" may be a reference to the re-imagined Battlestar Galactica, in which the phrase is used when the Fleet jumps.
 * Serina's British accent may have been chosen as a reference to Cortana, as the original draft of Halo: Combat Evolved's script had her planned to speak with one, but was later removed in favour of Jen Taylor's natural voice.

List of appearances

 * Halo Wars: Genesis
 * Halo Wars
 * Halo Mythos: A Guide to the Story of Halo
 * Halo Wars 2