The third season of the political thriller "The Diplomat" has premiered on October 16, 2025 on Netflix. Created by Debora Cahn, the series stars Keri Russell, Rufus Sewell, David Gyasi, Ali Ahn, Rory Kinnear, Celia Imrie, Ato Essandoh, Bradley Whitford and Allison Janney.
Find out more about the series after the jump.