This is Daniel Cudmore. He's a Canadian actor who you'll probably recognise most easily as Colossus from the X-Men movies. You'll also soon be seeing him play the role of Halo's Master Chief.
Well, sort of.
With the sci-fi series' big-screen adaptation dead in the water, Cudmore will be the first man to play the giant green space soldier in a meaningful role when he suits up for Forward Unto Dawn, a live-action series Microsoft has commissioned to help hype Halo 4.