On a philosophical level, no, if something takes control of your body and forces you to preform actions against your will you are not aware of then you are not evil. That does not fit any philosophical definition of evil, as the ontology of evil requires consciousness and free will, both of which are stripped away in the scenario. Legally, you aren’t culpable, either, though magical mental domination would be difficult to prove in court.
I fully agree.
Personally, I'm not interested in playing as an evil character either, but I think playing a good character who would go to any lenghts to prevent terrible things from happening would be very interesting and challenging (I doubt this character would even have the possibility to end their own life as a desperate last measure - I don't think this someone/something behind all of this would want to loose their puppet.)
Like I said, I wouldn't choose this as my first game, because I prefer to have control over my player character, but I think it's such an interesting roleplaying opportunity that I will try it at least once.
