This is it, as both of them are based in appearance on their voice actors. Don't think this is an intentional omission, as really this is meant to tweak a general appearance, rather than actually creating your own character.
What really stuck out to me though, was the lack of any racial differences in the multiplayer specialists, though it does have a pretty healthy mix of male and female, but only one Asian character. That seems more odd, although I guess technically one might be Hispanic as well? (The guy with Rejack and the HIVE launcher).