So, I haven't been the most active person in the later part of the Vicky part of the megacampaign (actually, I wasn't active at all) and I think the same will apply here in HoI4 (I just don't have the time to take active part in it, sorry), but I'm still honored to be permitted a character of my own.
I'm not sure how this whole character thing is going to work, but since I'm Polish I would gladly create some kind of political leader (or important scientist, if Poland-Lithuania would be a power responsible for a progress of weaponry during HoI4 period, which I highly doubt). The thing is, I know for sure that I won't roleplay it, so it would be only a person with a name and "background/description", but during AAR itself, it would only be mentioned in AAR updates, unless someone would want to roleplay it instead of me, which I would be totally okay with.
And now, one thing I want to ask/suggest about countries. The Roman Empire. Should it be protagonist or rather an antihero? I mean, it's great that the whole megacampaign focuses on Roman Empire, but the problem is, even after introducing a major crisis in form of a massive rebellion in Vicky 2, Roman Empire is still "a good guy". What if we would introduce somekind of crisis, political instability in Roman Empire, between some kind of conservative and moderate faction against some fascist/nationalist faction, which is driven by modern and radical ideas, which goal is to regain, in their eyes, "lost glory" of Roman Empire. Thanks to that, we could make The Roman Empire the antihero, the country which is the main point of the AAR, but is the main "bad guy" of the whole story as well and it would have to be stopped by some kind of coalition. What I have in mind is, let's put Roman Empire in the position or similar position of Germany in HoI4. We are all told that WW2 was the "fight between good and evil" (let's not discuss wheter we agree or not) but despite that, Germany is still the protagonist of vanilla HoI4, it has to be, because it was Germany that started the war and dictated for the most part the course of events.
What do you think? It's just a suggestion, though.