A Main Character – the character through whose eyes the audience experience’s the story – can have several dualities co-exist within and associated with them.
For example, there are two pairs of story points that describe the source of the Main Character’s troubles/motivation and its response to it.
Pair #1
MC Problem – the source of the MC’s personal conflict
MC Solution – that which will resolve the MC’s Problem
Pair #2
MC Symptom – the primary symptom (i.e. side effect) of the MC’s Problem
MC Response – the treatment applied by the MC in an effort to resolve the MC Symptom
Pair #1 describes the ‘Cause’ of the inequity at the heart of the MC’s personal troubles, whereas Pair #2 may be seen as the primary ‘Side Effect’ of the inequity.
For Change characters, the character believes Pair #2 is the cause of its personal problems and is blind to Pair #1 and its importance. The character arc describes the process of character Growth that tears down the blinders – act by act – until the character is able to see Pair #1 as an alternative (and ‘original’) source and solution to the MC inequity.
For Steadfast characters, the character believes Pair #2 is the cause of its personal problems and MAY be aware that the MC Problem in Pair #1 is the source of its drive/motivation, but does not attempt to resolve the MC Problem. Instead, the character arc describes the process of Growth that shores up (or builds up) blinders to counter increasing pressure to Change, ultimately leading to an effort to stay the course and go with the MC Response to resolve its inequity.
This describes one example duality within a Main Character (or Influence Character for that matter).
Another duality can be seen by looking at the player to which the MC is assigned. By definition, a main character is a subjective character and represents a point of view – in this case the “I” perspective. However, players in a story also exist in the objective perspective of the Overall Story throughline. Within the OS you may find character archetypes, such as protagonist and antagonist, etc., as well as complex objective characters.
The player that embodies the MC will also have the functions assigned to an objective character. For example, Player X may be the MC and the protagonist, or the MC and the sidekick, or the MC and a complex character, etc.
Player X could embody the personal journey and perspective of the main character, while also performing the functions of the protagonist and its effort to achieve the Story Goal (by way of example). In this way, the Story Outcome and Judgment may be evaluated by Player X’s efforts, both objectively (Success or Failure) and subjectively (Good or Bad), thus providing an author another opportunity to express a duality associated with the MC.