A formal word for someone who is being or has been persuaded

Target audience, focus....also found the snippet below:

https://law.marquette.edu/facultyblog/2015/06/persuading-people-who-dont-want-to-be-persuaded/

PERSUADING PEOPLE WHO DON’T WANT TO BE PERSUADED

“It’s not me; it’s you.” This tidbit all lawyers know: no matter how great and logical your argument, “if it doesn’t resonate for the recipient, you won’t get anywhere” (173). So, when persuading, we need to hook our recipients so the argument will resonate with them. How? Stories.

From SOED

-ee from verbs, with the sense 'person subject to an action or involved in an action', as employee, payee, devotee, escapee, conferee, standee

The nouns collected in the entry are found in the dictionary but this suffix is rather freely productive so that you can say persuadee, which is not found in the dictionary I use.

How about convert or proselyte. Would that work?