Indiana Jones
James T Kirk (Come on Star Trek haters, before you jump on him... he saved earth, saved earth again, defeated a geneticly "perfect" person, disobeyed starfleet, blew up his own ship to spite his enemy instead of letting it get captured, took over a klingon ship with a handful of people, managed to get Spock back to vulcan to get him resurected, traveled back in time, saved earth yet again, brought an extinct species back into existance, stood up to a diety figure, debunked said diety figure, broke out of The Prison of No Return (TM), saved the peace talks with the Klingon Empire who killed his son, died, came back to life, saved another planet (but not earth this time), then died again. And that's just in the movies. )
The faceless guy in Diablo II who allowed himself to be chained up for all of eternity, wresteling with the soul of a powerful demon, in order to save humanity.