4. Casting The Hero
Both Solid Snake and Big Boss (in his younger years) are voiced by actor and screenwriter David Hayter. His instantly recognisable, gravelly tones are integral to the characters, and having anyone else portray Snake or Big Boss would sound weird. Hayter is already a voice actor, and even bears a resemblance to the Snakes, so perhaps he should be in the leading role. But is he up to the job? Another, more bankable actor who is more than capable of giving Snake or Boss his gravelly growl would be Christian Bale, but is a video game adaptation really going to attract such talent?