In 1996, I worked with a guy who had one of these voices - the ones that just sound like you imagine VO voices sound like, well before the current crop of 'effected' VO voices, and I got him a few bit of work, before I went off to do other things and I just heard his voice on the TV, but discovered it's his son! He has exactly the same voice as his dad! Must run in the family.
Here in the UK, something weird has happened with VO talent, though. The British accent that I hear all the time on popular US TV series has simply vanished and it's use is now minimal on TV and radio. We call what we hear on US TV as a Brit voice - RP (Received Pronounciation) but it's been replaced by regional accents. The BBC moved from London to Salford, in Manchester - so now it's far more common to hear the UK accents from the regions. Some of our accents are probably impossible for American folk to understand, because not only has it got a strong accent, it even has new words. If you want some examples - google how it's made and find the same episode from a US source and a UK source. Our one has a Northern Accent.