Agents used the robots on Nia to build a new kind of robots: Androids.

They are human-sized and can either have a male or female body.
There is a screen on their face displaying the portrait of the agent. The screen could be switched off.

Androids could do a variety of different animations, and would be pretty weak at combat.
Basically this is a weaker, but better looking version of the Arkhe. Androids would be cheap to produce but they would also be easily destroyed.

This is just an idea I had.