Following up on the Gunpoint/Dualpoint post, here are three planned NPCs for the game concept.

Harold is a metallurgist and owner of a workshop in one of the first zones;
Sydney is a renowned medic of both organic and artificial lifeforms;
Lizzie is a professional chassis engineer living in the big city.

This is the first time I managed to finalize acceptable designs for them (in pixel-art, no less!)