In Star Army, you can play as an artificially-created person (an android) or as a robot. This guide is focused on existing models but you can also create your own android body. Androids, by definition, are humanoid robots, but you can play non-humanoid robots if you prefer. An example of this is Crash Mckill. Android is a general, masculine term; the female-specfic version of an android is a called a gynoid.
Androids come in both machine and biological varieties.
Biological/organic androids are sometimes referred to as bioroids or synths. They are made of flesh and blood. The line between them and genetically-engineered clones can be thin, especially when they can reproduce; the difference is these were designed and created from scratch instead of being modifications from an existing species. Synth species make of a large portion of the population of the Yamatai Star Empire.
These are mechanical androids made of metal and plastic. They are very common in the SARPiverse.
These androids are self-aware.
The androids in the list below are generally not fully sapient so generally they're used as NPCs.