Marccus Silverhand, The Death Knight.

Marccus is a strong and cruel death knight, but he works with a crew of Death Knights that are loyal to him. They left the Scourge after the fall of the Lich King. He had a great rage against Arthas, because the old Lich King has killed his step-father, Uther.

Marccus by Me.
W.O.W. by Blizzard.