Mr Charlton Heston, did 'voice overs' for many documentaries'. His beautiful bass voice was just THE most! His voice was used in a 'slowed down' version for that of 'God' in his film, 'The Ten Commandments'.
Even better when heard IN PERSON, which I have several times, when he's toured here! Wow, just WOW!
UK actor, Steven Mackintosh does much these days', to the delight of my ears!