Speaking for the Android platform, you need to update your game to at least v1.4.0, and then will need to play for a while with an internet connection as it downloads these bitizens. Once that's complete then, in theory, you should be able to play offline. (I say "in theory" because I normally play only online.)
Are you on Android?
I'm not quite sure what you're asking, but if you mean that the Galactic Registry Album is showing generic humans, then that is a known bug introduced in the 1.4.2 update (at least on Android). Yep, it's really annoying that you can't see the correct bitizen images. I hope they update soon.