This mod restores completely, and almost unused pedestrians. Why almost? because some of them can be seen either in cutscenes or in certain missions, but from their voice lines, various types of clothing, model names, it can be concluded that they should appears in the city as simple pedestrians.
In addition to simple restoring, improvements and fixes have been made for some pedestrians.
You can check screenshots and description for each restored pedestrian on homepage of the mod.

Starting with update 1.1 this mod restores some clothes and extras for various pedestrians, purely beta content. Just like restored pedestrians, they have description and screenshots on homepage.

Current version of the mod - 1.4