Suroth, I don't believe Suroth is a Forsaken, just a darkfriend in high places among the Seanchan. Although I would agree that someone is pulling her strings. Obviously, as seen in TGH, Suroth was receiving orders from Ishamael. I wonder if Lanfear had taken up on that end where Ishamael had left off...then again maybe Lanfear is gone now so who took her place?