Netflix The Diplomat cast and character guide: Who stars in the political drama series?

The Diplomat. (L to R) Rufus Sewell as Hal Wyler, Ali Ahn as Eidra Park, Jess Chanliau as Ronnie, Ato Essandoh as Stuart Heyford, Keri Russell as Kate Wyler in episode 102 of The Diplomat. Cr. Alex Bailey/Netflix © 2023
The Diplomat. (L to R) Rufus Sewell as Hal Wyler, Ali Ahn as Eidra Park, Jess Chanliau as Ronnie, Ato Essandoh as Stuart Heyford, Keri Russell as Kate Wyler in episode 102 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /
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Golden Globe Award-winning actress Keri Russell stars in a new Netflix series called The Diplomat. It’s definitely worth checking out if you enjoyed watching The Night Agent and The Recruit.

Created by Homeland writer and executive producer Debora Cahn, The Diplomat follows a career diplomat named Kate Wyler who finds herself struggling to balance her new role and marriage after landing the high-profile position of US Ambassador to the United Kingdom.

Of course, there are many other talented actors in the series besides Russell, such as Rufus Sewell, Ali Ahn, David Gyasi, Ato Essandoh, Rory Kinnear, Miguel Sandoval, Nana Mensah, Michael McKean, etc. If you want to know who’s who in the political drama, continue reading because we shared a cast and characters guide below.

Netflix The Diplomat cast and character guide

The Diplomat
The Diplomat. Keri Russell as Kate Wyler in episode 103 of The Diplomat. Cr. Courtesy of Netflix © 2023 /

Keri Russell as Kate Wyler

Keri plays the protagonist, Kate Wyler. Kate had been working as a U.S. diplomat for a while and was set to travel to Afghanistan for her next assignment. But then Kate’s boss, the President of the United States, assigns her a new position that she believes she’s unsuited for, the U.S. ambassador to the United Kingdom.

Keri has starred in many movies and TV shows since the start of her acting career. However, she’s best known for playing the titular character in the television series Felicity. She also had roles in the movies Honey, I Blew Up the Kid, We Were SoldiersMission: Impossible III, WaitressAugust RushExtraordinary MeasuresStar Wars: The Rise of Skywalker and Antlers. Her most recent role was in the comedy film Cocaine Bear.

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The Diplomat. Rufus Sewell as Hal Wyler in episode 104 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Rufus Sewell as Hal Wyler

Rufus plays Hal Wyler, a well-known career diplomat and Kate’s husband. Hal helped end many wars but also made many enemies along the way. He’s used to being in the spotlight, so it’s not easy seeing his wife get all the shine with her new position.

  • Where have you seen him before?  Carrington, Hamlet, Dangerous Beauty, A Knight’s Tale, The Legend of ZorroThe IllusionistAmazing GraceThe Holiday, JudyThe Father, OldThe Man in the High CastleKaleidoscope
  • Social media: Instagram
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The Diplomat. (L to R) Keri Russell as Kate Wyler, David Gyasi as Austin Dennison in episode 101 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

David Gyasi as Austin Dennison

Davis plays Austin, a British foreign secretary under Prime Minister Trowbridge and an unexpected ally of Kate’s.

  • Where have you seen him before? Cloud AtlasInterstellarTroy: Fall of a CityContainmentCarnival RowHalf Bad: The Bastard Son & The Devil Himself, The Sandman
  • Social media: Instagram 
The Diplomat
The Diplomat. (L to R) Ali Ahn as Eidra Park, Ato Essandoh as Stuart Heyford in episode 101 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Ato Essandoh as Stuart Heyford

Ato plays Stuart, a former DC campaign manager who is now Kate’s deputy chief of mission at the U.S. Embassy in London.

  • Where have you seen him before? Chicago Med, Copper, Jason Bourne, Garden State, Blood Diamond, Django UnchainedAwayGirlsAltered Carbon
  • Social media: Instagram
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The Diplomat. Rory Kinnear as Nicol Trowbridge in episode 102 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Rory Kinnear as Nicol Trowbridge

Rory portrays the role of Nicol, the highly volatile prime minister of the U.K., who Austin Dennison works for.

  • Where have you seen him before? Quantum of Solace, Skyfall, SpectreNo Time to DieBlack MirrorPenny DreadfulGuerrillaYears and YearsCatherine the GreatOur Flag Means DeathBank of Dave
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The Diplomat. (L to R) Nana Mensah as Billie Appiah, Michael McKean as William Rayburn in episode 101 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Nana Mensah as Billie Appiah

Nana portrays the role of Billie, the hardworking White House chief of staff. Billie used to work with Stuart when he was a campaign manager and still remains friends with him.

  • Where have you seen her before? The Chair, 13 Reasons Why, New Amsterdam, BondingThe King of Staten IslandAn African CityMadam SecretaryOrange Is the New Black
  • Social media: Instagram
The Diplomat
The Diplomat. (L to R) Keri Russell as Kate Wyler, Nana Mensah as Billie Appiah, Michael McKean as William Rayburn, Rufus Sewell as Hal Wyler in episode 103 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Michael McKean as William Rayburn

Michael plays William Rayburn, the President of the United States. He’s best known for his previous roles in Laverne & Shirley, This Is Spinal Tap, Better Call Saul, Grace and FrankiePlaying GodRugratsJungle Cubs, Dream OnJerry & Marge Go LargeTracey Takes On...Breeders and Weird: The Al Yankovic Story.

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The Diplomat. Ali Ahn as Eidra Park in episode 105 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Ali Ahn as Eidra Park

Ali plays Eidra, the chief of the CIA station in London, U.K. Her job is managing the complicated relationship between the CIA and MI6. She’s also in charge of reporting intelligence information back to Kate’s team. Eidra and Kate don’t initially get off on the right foot but eventually become close.

  • Where have you seen her before? Raising DionSupernaturalLiberal ArtsWhite CollarBlack BoxOdd Mom OutThe BreaksThe PathBillionsNextLittle DemonOrange Is the New Black
  • Social media: Instagram 
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The Diplomat. (L to R) Keri Russell as Kate Wyler, Miguel Sandoval as Miguel Ganon in episode 106 of The Diplomat. Cr. Alex Bailey/Netflix © 2023 /

Miguel Sandoval as Miguel Ganon

Miguel Sandoval plays Miguel, the U.S. secretary of state who disapproves of some of the ways Kate does her job. He doesn’t particularly like Kate’s arrogant husband either.

Where have you seen him before? Station 19MediumDo the Right ThingJungle FeverCollateral DamageOculusBlood FatherJurassic ParkL.A. FirefightersAlias10-8: Officers on DutyEntourage, Sharp ObjectsBarry

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The Diplomat arrives on Netflix on April 20.

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