Originally Posted by
Glio
The main difference is that in character driven series you create situations because you are interested in how they affect the characters.
In plot driven you put situations because the situation itself is what is interesting, the character is there to solve it. The characters have more or less characterization but the narrative weight is not in them, it is in the situation that has been created.
You can do a WW2 story in which you tell the intimate story of a soldier who longs for his home or a great epic about how a group of soldiers carry out an impossible mission. Not all of these soldiers are going to have a deep characterization because, frankly, it is not necessary. It would distract from what you want to tell.
Petra and Sway are supporting characters of a supporting character.