The Diplomat poster

TV series

The Diplomat

2023TV-MA4 seasons7.6 / 10

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.

Streaming, rental and purchase options

Where to watch in United States

Checked Nov 1, 2026

The Diplomat is available to stream on Netflix in United States. Use the direct links below to open the provider.

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Synopsis

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.

Season 4 episodes

Choose an episode, then use the watch options above for the show.

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Episode 1

Windsor

49m8.3 / 10

On an unplanned stopover at Windsor Castle, Kate grows wary of Hal and Grace's dynamic as she tries to contain the fallout from their covert actions.

Episode credits

Directed by Alex GravesWritten by Debora Cahn, Debora Cahn, Anna HagenGuest stars Penny Downie, Georgie Henley, Richard Dillane, Graham Miller, Rosaline Elbay, Carol Mazhuvancheril, Aidan Turner, Neil Pearson

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Episode 2

Redcoats

43m8.1 / 10

A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.

Episode credits

Directed by Alex GravesWritten by Debora CahnGuest stars Penny Downie, Georgie Henley, Richard Dillane, Graham Miller, Rosaline Elbay, Carol Mazhuvancheril

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Episode 3

The Typo

58m8.0 / 10

A budgetary snag threatens to torpedo negotiations, with costly implications for the US. Stuart and Eidra get personal as they weigh their next move.

Episode credits

Directed by Liza JohnsonWritten by Jessica BrickmanGuest stars Adam Silver, Richard Dillane, Graham Miller, Carol Mazhuvancheril, Aidan Turner

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Episode 4

Pagliacci

53m8.1 / 10

After Hal drops a bombshell that throws the UK alliance into jeopardy, Kate faces mounting pressure to control the damage by any means necessary.

Episode credits

Directed by Liza JohnsonWritten by Peter NoahGuest stars Celia Imrie, Penny Downie, Richard Dillane, Graham Miller, Pandora Colin

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Episode 5

Special Envoy

54m8.5 / 10

Kate contends with her complicity in a stunning political shake-up, while a disenchanted Todd explores his options across the pond.

Episode credits

Directed by Tucker GatesWritten by Eli AttieGuest stars Miguel Sandoval, Penny Downie, Georgie Henley, Jodie Whittaker

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Episode 6

The Dead

54m8.9 / 10

When a dangerous adversary makes its move, Grace issues a hard-line threat to the prime minister, forcing Kate to reckon with her role as the messenger.

Episode credits

Directed by Tucker GatesWritten by Julianna Dudley MeagherGuest stars Miguel Sandoval, Penny Downie, Adam Silver, Graham Miller, Jodie Whittaker

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Episode 7

Phony Negroni

53m8.6 / 10

Personal and political lives collide — and damaging secrets surface — when Kate and Hal join Grace and Todd in Italy ahead of the G7 summit.

Episode credits

Directed by Alex GravesWritten by Anna HagenGuest stars Graham Miller, Rosaline Elbay, Carol Mazhuvancheril

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Episode 8

Warships

1h 1m9.1 / 10finale

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.

Episode credits

Directed by Alex GravesWritten by Debora CahnGuest stars Miguel Sandoval, Graham Miller, Rosaline Elbay, Carol Mazhuvancheril, Jodie Whittaker

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Episode information updated Nov 14, 2026

More about The Diplomat

Cast

Keri RussellAmbassador Kate Wyler
Rufus SewellHal Wyler
David GyasiForeign Secretary Austin Dennison
Ali AhnEidra Park
Rory KinnearPrime Minister Nicol Trowbridge
Ato EssandohStuart Hayford
Bradley WhitfordTodd Penn
Allison JanneyGrace Penn

Credits

Created by
Debora Cahn
Written by
Debora Cahn, Peter Noah, Anna Hagen, Peter Ackerman, Eli Attie, Jessica Brickman, Julianna Dudley Meagher, Amanda Johnson-Zetterström, Debora Cahn, Anna Hagen, Mia Chung, Debora Cahn, Mia Chung, Anna Hagen, Julianna Dudley Meagher

Production details

Status
Returning Series
Series type
Scripted
Episodes
30
Original language
English

Networks & production

  • Netflix
  • Let's Not Turn This Into a Whole Big ProductionUnited States
  • Well RedUnited States
  • NetflixUnited States

Themes

ambassadoramerican diplomatcerebraldignifieddiplomatearnestfemale politicianharsh