I’m thinking of whatever the person would be who stands in for a royal or important figure during events to keep the actual person safe in the background - for a stupid example, the situation in Star Wars with Amidala and her handmaidens.
The specific term needs to deal with the replacement as a ***visual ***representation of the person, and preferably to also reference their having power to take action in that person’s name.
I’m not having any luck, and I don’t want to invent a term if there is already an established one.
Many thanks!