A CIA operative wouldn't be the worst case I think. It will probably depend on how someone is publicly perceived. CIA wouldn't be a great scenario, but nobody would think they'd destroy the price by dumping it recklessly out of a sudden. I think it could be more problematic if Kim Jong-un's regime is Satoshi. Ultimately I agree that nothing should really change for anyone unless someone has moral concerns, but that could go for the CIA for some people as it could go for Kim Jong-un for others.

What really matters is whether it is possible for any actor to change how bitcoin works and whether its tamper-proof structure is at risk. As long as that is not the case, I would expect the price to take a hit, but to recover from it. The price would probably take a hit because there would be a short-term chain reaction from speculators who all think the same: there will be a wave of sellers, everyone trying to buy back cheaper, until resistance from purchases gets so strong that further dumps won't have any effect, then recovery from there.

There could be one problem though if a problematic actor is in possession of the Satoshi BTC: would the price increase potentially as much as it would if people didn't know who Satoshi was? If the BTC are in the hands of a questionable actor, would potential investors still feel as comfortable to invest and hence push the wealth of someone they condemn or fear?