Dr. Aki Ross is the main character of Final Fantasy: The Spirits Within. She is voiced by Ming Na Wen.

Aki is a scientist working with Dr. Sid to harness the seven spirits necessary to vanquish the current alien invasion, as well as to cure her own infestation. She was the first human being to have sucessfully contained an alien infestation, which typically kills within minutes. To do so, however, required an operation in zero gravity. When Aki sailed to the moon for this operation, her relationship with Gray Edwards was destroyed, causing them to have a lot of resentment towards each other.

Aki was going to be the first CG actress, having appeared in several movies as well as Maxim magazine. She has been compared to Laura Croft in beauty and talent.