Lakewood001.
Actually most of Nach was written by the protagonist.
Most of Mishnah, Talmud, and Midrash are redacted versions of Collected writing rulings and discussions of Sages over a period of time so they could not have been written in “real time”. There are exceptions where isolated Midrashim may actually have been written by the protagonist (Parts of Pirkei D’rabi Elizer for example)