I thought people might have fun just picking out which images they thought had "star quality". The question should have been "which of these characters stand out to you?" or "which of these faces do you find the most memorable?"
I understand your comment completely. I actually knew what you were going to write as soon as I saw the notification of reply, and immediately realized I'd made an error in phrasing.
Our process is a bit different than standard casting
First we create tons of candidate images. The world will need thousands of characters, many incidental. Faces in the crowd, convenience store clerk, bank teller, etc. We create character images constantly, to fill the need for such volume. When we need to cast a primary role, the real casting takes place. A voice actor, body, and movement style is assigned to the face based on the specific role. So from our perspective, the first cut is simply to cultivate a library of faces that have "character" or are memorable. If I need a chef at a large restaurant that is always in a hurry as an example, it could literally be any of 15 of the above characters, just given the correct clothing, voice, motion, and dialogue. Since animated characters don't have built in personalities like people do, it really is a different casting process. At first we simply look at a face, and say, will an audience member remember that face, if we take the time to imbue it with a personality.
Think of Rutger Hauer vs Thomas Jane. Both can play the same kind of roles if needed, but everyone remembers what Rutger looks like, and Thomas Jane kind of blurs in with the other 300k actors that are "handsome and in good shape" JK Simmons is in my opinion is far more memorable than Armie Hammer. Unless you're casting for the role of a mannequin that came to life.
This was really just intended to be a game for people to play, so rather than explain all that in the primary post, I'll keep it simple and just add in a few roles we are looking to fill. I'm interested in seeing how different people perceive various faces.