The Diplomat Season 1 • TV Show
The Diplomat
The Diplomat • TV Show • Rating 7.6 out of 10
seasons Season 1 
Season 2
Season 3 Season 4
Seasons of The Diplomat
The Diplomat currently has 4 seasons and 30 episodes. Most episodes run for around 55 minutes, giving it the feel of a full hour-long drama. The series is currently marked as "Returning Series". The most recently aired episode came out in 2025.
The Diplomat Season 2 • TV Show
The Diplomat Season 3 • TV Show
The Diplomat Season 4 • TV Show
The Diplomat Season 4
release-radar
When does The Diplomat Season 4 come out?
According to the latest schedule, the next confirmed release for The Diplomat is Season 4, Episode 1, titled "Episode 1", which is set to air on October 15, 2026. That episode will open a brand new season, making it the official start of Season 4. Release times can differ slightly outside of United States of America, so your local broadcaster or streaming app may list a slightly different premiere date or time. When the next release does arrive, it is expected to carry the same content rating of TV-MA (US), which can influence when it airs on different providers and platforms.
trailers
Watch the official trailers for The Diplomat
Watch the main official trailer for The Diplomat in one place. Most of these clips were released around April 2023, capturing the show at its peak marketing push. Use the carousel to sample the show's visual style, story hooks and production quality before you dive into full episodes.
Uploaded in April 2023
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Documentary
overview
What is The Diplomat about?
No alliance lasts forever. Amid an international crisis, a US diplomat contends with her high-profile job as ambassador to the UK and her strained marriage to a political star. It blends drama and war & politics elements. The series reflects a distinct United States of America style and perspective. The story is shaped by its creator, Debora Cahn.
release-timeline
Release pattern and schedule for The Diplomat
The Diplomat has been releasing episodes between April 2023 and October 2025 across 4 seasons. So far there are 30 released episodes, giving you plenty of story to catch up on before the next drop. On average, new seasons have arrived roughly once a year (10 months between premieres), which is a common pattern for scripted TV. The upcoming release currently points to October 2026 as the key month to watch for new content.
catchup
How to catch up before the next The Diplomat release?
The Diplomat currently spans 4 seasons and 30 episodes, making it a manageable rewatch before the next release. Most instalments run for around 55 minutes, so a full-season binge can fit into a few dedicated evenings or a single weekend. If you're returning to the show, the latest storyline leaves off at Season 3, Episode 8, so rewatching the final season or two can help refresh the details before the next release.
cast
Cast and creators of The Diplomat
The main cast includes Keri Russell, Rufus Sewell and David Gyasi. Behind the scenes, it is created by Debora Cahn.
Keri Russell
as Ambassador Kate Wyler
Rufus Sewell
as Hal Wyler
David Gyasi
as Foreign Secretary Austin Dennison
Ali Ahn
as Eidra Park
Rory Kinnear
as Prime Minister Nicol Trowbridge
Ato Essandoh
as Stuart Hayford
Allison Janney
as President Grace Penn
Bradley Whitford
as Todd Penn
keywords
The Diplomat Keywords(27)
london, englandambassadordiplomatmarriagepoliticspoliticianfemale politicianmourningmeditativeamerican diplomatshockingvexedusa politicspolitical thrilleru.s. ambassadorpolitical crisispoliticalseriouscerebralintimatesuspensefulthrillerintensedignifiedearnestharshmatter of fact