If you play an evil character it’s gotta stick a little.
And if you’re a character-actor who always gets the evil role. If you play 100 evil guys. Then 100X moreso.
You get into the evil role. See the world through evil eyes and evil motivations.
And over time it’s gotta bend your personality towards real evilness. Right?
I suppose you could google evil-character-actors. 20 years later, how many got arrested for something heinous.
What do you think?
EDIT
Put more generally : Can habits gained in one context bleed over into another context?
Yes.
Do they?
Possibly. With increasing probability as the habit becomes stronger. And there’s self-awareness to consider. And how much the habit clashes with the new context.
People know the difference between fantasy and reality. Unless someone’s questionable anyway I don’t think pretending to be evil will change someone. People play violent video games and don’t tend to go out and shoot up their neighborhoods. Same thing.