- Keri Russell (Ambassador Kate Wyler)
- Rufus Sewell (Hal Wyler)
- David Gyasi (Foreign Secretary Austin Dennison)
- Ali Ahn (Eidra Park)
- Rory Kinnear (Prime Minister Nicol Trowbridge)
- Ato Essandoh (Stuart Hayford)
- Bradley Whitford (Todd Penn)
- Allison Janney (President Grace Penn)
The Diplomat — S4E8
Episode: Warships
Air Date: 2026-10-15
Runtime: 60 min
Overview
At a meeting of world leaders, a diplomatic breakdown edges the US closer to an international crisis — and compels Kate to make a seismic decision.