A Dramatica student asks:
In Dramatica theory, are all Objective Characters be-ers and all Subjective Characters do-ers?
No, there is no assignment of be-er or do-er to objective characters at all. Objective Characters, such as the archetypes, are all defined by their functions only, when seen in terms of structure.
Naturally, in storytelling, you layer on a personality for each objective character to help the readers or audience connect to them as real people. And that personality, which is independent of structure, could be a do-er or a be-er, but it is not assigned by structure.
Conversely, Subjective Characters, of which there are two: Main and Influence, will be do-ers or be-ers, based on which domain you have chosen for them in your structural storyform. Universe (Situation) and Physics (Activities) are both externally focused areas of exploration, so if your Main character resides in one of these, he or she will be a do-er as a result.
And, since the Influence Character is diametrically opposed in outlook to the Main Character, they will be positioned in the domain opposite that (diagonally) to the Main Character. So, if your Main Character is in one of the external domains, your Influence Character will be in one of the internal domains: Mind (Attitude) or Psychology (Manner of Thinking), which will make it a be-er.
So, to sum up, only the two subjective characters are structurally mandated as be-ers or do-ers, they will be opposites.