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The Best Episodes of The Diplomat Season 3

Every episode of The Diplomat Season 3 ranked from best to worst. Discover the Best Episodes of The Diplomat Season 3!

Binge this in 6h 32m•Peaking at 8.1/10

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.

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Episode Rankings

  1. #1 Fan Favorite
    The Diplomat Season 3 Episode 1 - Emperor Dead
    7.6/10(22 votes)

    #1 - Emperor Dead

    S3:E1

    Amid a growing constitutional crisis, the staff scrambles to stage an impromptu inauguration, while Hal exploits the chaos behind the scenes.

    Director:Alex Graves
    Writer:Debora Cahn

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  2. The Diplomat Season 3 Episode 2 - Last Dance at the Country Club
    7.3/10(21 votes)

    #2 - Last Dance at the Country Club

    S3:E2

    Kate weighs a compelling offer. Eidra faces scrutiny over fallout from the Roylin debacle. Stuart pitches a proposal that goes far deeper than policy.

    Director:Alex Graves
    Writer:Anna Hagen

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  3. The Diplomat Season 3 Episode 3 - The Riderless Horse
    7.6/10(18 votes)

    #3 - The Riderless Horse

    S3:E3

    As the nation pauses to mourn, Grace considers the framework of her administration. Private strain threatens Kate and Hal's polished public image.

    Director:Tucker Gates
    Writer:Eli Attie

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  4. The Diplomat Season 3 Episode 4 - Arden
    7.6/10(19 votes)

    #4 - Arden

    S3:E4

    Kate's unique role grants her access to anyone she wants — except the one person she needs. Dennison puts actionable intelligence to personal use.

    Director:Tucker Gates
    Writer:Jessica Brickman

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  5. The Diplomat Season 3 Episode 5 - Birdwatchers
    7.7/10(19 votes)

    #5 - Birdwatchers

    S3:E5

    Forced to play the perfect couple, Kate and Hal confront a looming problem in international waters and a development that could torpedo U.S. credibility.

    Director:Liza Johnson
    Writer:Peter Noah

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  6. The Diplomat Season 3 Episode 6 - Amagansett
    7.9/10(17 votes)

    #6 - Amagansett

    S3:E6

    At an emergency strategy session, Grace weighs unthinkable choices, while Kate rolls the dice on a gamble that could alter the course of history.

    Director:Liza Johnson
    Writers:Debora Cahn, Peter Ackerman

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  7. The Diplomat Season 3 Episode 7 - PNG
    7.7/10(19 votes)

    #7 - PNG

    S3:E7

    Sequestered inside Winfield House as embassies go on alert and allies fall silent, Kate and Callum race to contain a potential disaster.

    Director:Alex Graves
    Writer:Julianna Dudley Meagher

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  8. The Diplomat Season 3 Episode 8 - Schrodinger's Wife
    8.1/10(18 votes)

    #8 - Schrodinger's Wife

    S3:E8

    Kate must use all her leverage and political instincts to avert a catastrophe at a high-stakes summit — with the fate of nations hanging in the balance.

    Director:Alex Graves
    Writer:Debora Cahn

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Season 3 Ratings Summary

"Emperor Dead" is the best rated episode of "The Diplomat" season 3. It scored 7.6/10 based on 22 votes. Directed by Alex Graves and written by Debora Cahn, it aired on 10/16/2025. This episode is rated 0.3 points higher than the second-best, "Last Dance at the Country Club".