Cynthia Kaye McWilliams has landed the role of Spartan Tanaka in Halo 5 Guardians. Click on the pics below to go to the IMDB source links.
Cynthia is a stunner. I’m curious to see if her face will be used in the game or not. 
Ms McWilliams is likely bet known for her role in ‘Prison Break’ as Kacee Franklin.
Now the question is, will she also appear in Halo Nightfall???
Found this from a tweet by Halo Reddit.
-Sal
Interesting. The Halo universe is so vast that the addition of characters needs to occur to explore the many possible plot lines available. I do hope though that they don’t go too far too fast. Once you start expanding you open yourself to the story lines becoming too unwieldy very quickly.
Still, it is exciting to see. Now if we could only have Nathan Fillion and Trica Helfer back in the game…