In this image we have 4 characters you will see in the game. There are many more than this, and I'll show them to you as time goes on. But you can see that these 4 character concepts share the same physical proportions and it's only their equipment that sets them apart from each other. This applies to the rest of the cast as well.
This was an entirely conscious desicion that serves multiple purposes. From a creative standpoint, I knew up front that I didn't want to spend any time writing a story or developing characters; Ultimately I know that people play beat-em-ups because they want to experience exciting combat...not to be a part of some nonsensical melodrama. None of the characters in Aztez will have a distinct face (though they will have facial expressions we will use as gameplay cues) and none of them will speak. I feel that in the context of a game like this, those things simply aren't important.