Basically, there are too many characters for me to list here, so I'm just going to divide it into camps and groups. Include the Emilia camp, Felt camp, Crusch camp, Priscilla camp, and Anastasia camp. Other than those, include notable residents of Arlam village and the Sancturary, as well as maybe even the Appa guy. Don't include the witches of sin or the sin archbishops, though once you get to certain plot points, if you make it that far, you can add in other characters from Emilia's memories or otherwise. Maybe even have the judges and rulers and all of that from the capital during that scene in Arc 3 participate in the watching of the show? Have Subaru Natsuki be asleep during the proceedings. Please make the reactions realistic, varied, and true to the characters.