I found a decent US stats site that gives how popular the name is, for the US.
This is a guess, but I expect around 500 of those names will be the most popular American names, given the publishing company.
Then I'd expect a range of the most popular international names matching the game's anticipated sales footprint.
Then I'd expect a range of funny, lore appropriate or sci-fi genre or popular '50's' names that aren't in the top 500.
So: 'Andrea' is to be expected.
I'm sure there are other sites, but
http://howmanyofme.com/search/
has that as the 156th most popular name.
As for 'Asher', I wouldn't hold anyone's breath on that one.
As an example, just randomly picking a few first names from Fallout 3 (assuming they were not more likely to get included anyway)
You'd likely get:
- James, Catherine, Sarah, Bryan, Leroy, Billy, etc
But you be unlikely to get:
- Evan, Shorty, Moira, Jericho, Clover, Cherry, etc