Currently, it is possible to let inactive actors talk. I hope, this is an indended behavior, because this is very useful. That way you can change the face to a face of an actor you want, who is not even somewhere to find in the current level. You can e. g. let a person “speak” before he or she actually enters a room or having a character within your group talk, who is actually not part of the current level. I guess there are more possibilities like this in order to use it. If you think it is a bug, I would like to ask you to not correct it.