A True Neutral character or organization can be introduced as a Wild Card, neither aligned with the Hero nor the Big Bad. On the other hand, they may well be on one side or the other, at least nominally. Perhaps they care little for the conflict and have their own goals, which are neither particularly good or evil. A True Neutral scientist may work for the good guys because it furthers their research, but they may also work for the bad guys for the same reason.