If you didn’t see it coming that this would be Halo related then you haven’t been following this very well.
I was going to pick Master Chief but I think I’ll make it Spartans as a whole. Despite the video games mostly focusing on Master Chief alone there actually were a lot of Spartans to begin with and there still are some left in the Halo universe. Will some show up in Halo 4?
My back up choice would probably be Marcus Fenix from Gears of War. He’s rough and he’s gruff but he’s got a heart and a softness that not many studios could pull off in such a macho game industry.