There are approximately 20 possible supporting characters in Volume II, with a gender breakdown of 75% male, 25% female, all 18-older. Depending on the character, they can appear in a single panel or as much as a page. Regardless, they will be featured prominently in the scene.
Absolutely! All that is necessary is to provide two head and neck shots (ideally one in profile) and a full or 3/4 body shot as a model for the character. Please keep the gender breakdown in mind when choosing. Unfortunately, there are no characters available for children.
Don't see the answer to your question? Ask the project creator directly.