Image shows the Arbiter (on the left) and Master Chief (on the right) in "Halo 3". Bungie Inc. It's rarely used, but his real name is actually Thel 'Vadam.

The Arbiter from Halo and Raiden from Metal Gear are both participants in massive, surprise protagonist swaps. But the Arbiter is the anti-Raiden, giving Master Chief a run for his money.