Sif

Sif is a UNSC A.I. who takes the form of a woman with an ankle-length sleeveless gown and long golden hair; she also gives the appearance of Nordic royalty. She choose this avatar because many of Harvest's settlers where from Earth's old heartland, which could trace their ancestry back to Scandinavia.

She is in charge of Harvest's shipping operations. Mack talks with Sif often, albeit oftentimes to her annoyance and frustration.

Trivia

 * Sif is the wife of Thor in Norse mythology.