Tanaka from Wing Commander 1 & 2.
Her dramatic death in Wing Commander II, till this day, still brings me sorrow. It was the first time ever that a computer game moment actually brought tears to my eyes - and a vengeful hatred for all things Kilrathi. Till this very day I can visualize the exact scene with incredible clarity.
Upon learning that her captured fiance was onboard a Kilrathi ship with no chance of escape, she kamikazed her ship into the station holding her fiance, destroying it. Her last words to my character as she plummeted her ship into the Kilrathi ship:"Tengoku de omachi shite imasu" (I am waiting for you in Heaven)
I will always remember Spirit...