Brown is a common hair color, so you can at least hand wave that.
That or go for the lighter of the two shades of brown.
As for glasses, I think there are two styles of glasses.
Also, Raine's eyes are grey, so maybe you could go with a more distinct eye color that stands out enough to draw attention away from his similarities.
I suppose... I was planning to give my characters blue eyes anyway, but I don't like the larger style of glasses...