Alexander Johan Hjalmar Skarsgård (born August 25, 1976) is a Swedish actor. He is best known for his roles as vampire Eric Northman on the HBO series True Blood, a male model in Zoolander and Brad Colbert in the HBO miniseries Generation Kill. Description above from the Wikipedia article Alexander Skarsgård, licensed under CC-BY-SA, full list of contributors on Wikipedia.
When mankind beams a radio signal into space, a reply comes from ‘Planet G’, in the form of several alien crafts that splash down in the waters off Hawaii. Lieutenant Alex Hopper is a weapons officer assigned to the USS John Paul Jones, part of an international naval coalition which becomes the world's last hope for survival as they engage the hostile alien force of unimaginable strength. While taking on the invaders, Hopper must also try to live up to the potential that his brother, and his fiancée's father, Admiral Shane, expect of him.