Board Thread:COMPLETE BULLSHIT Forum/@comment-10998851-20140314143314/@comment-11533671-20140315051352

^ Maybe Paul or someone else has a definitive answer but as far as I can recall, it would appear as though Alphas who have taken a life do not always exhibit the red eyes every time. Perhaps the red is only shown when they need to exert control or dominance, or some show of strength. Maybe the red only shows when they are enraged. Maybe an Alpha that has taken a life has to consciously "mask" the blue with the red. I don't think the answer has ever really been given. Any sort of speculation can be derived. The bottom line is that I cannot recall any specific answer in interviews or the show as to why Derek's eyes appear to "shift" between blue or red at any given time as an Alpha.