In entertainment, celebrities carefully craft a 人设 — e.g. '学霸人设' (smart persona), '好爸爸人设' (good father image). '人设崩塌' (rénshè bēngtā, persona collapse) is when a scandal destroys their image.
usage
Also used casually for anyone's personality brand: '你的人设是什么?' (What's your thing?). Originally from anime character design sheets.