I was watching the recently announced Starcraft 2 video frame by frame (call me a freak) when two ghost faces have turned up at timecode 00:12.38 – this is so much like Fight Club, where Brad Pitt is shown at various points in the movie for one frame long. Intentional? Yes.
Anyway, I have no idea who these people are, so it’s up to you to figure it out.
(Click the picture for full resolution version.)