Fury. He could become important if they expand.. obviously. I liked the questlines revolving around him

I don't think it had to do with who was important but who survived to continue the saga. Notice they all have respect for V. No dead Characters were shown. I'd say it was a sneak peek at who may appear in the next chapter. There has to be a next chapter. I hope anyway.

Not sure why they added Jefferson in the end credits, wasn't really impactful or an important character, at least to me