‘The Diplomat’s Best New Star Jodie Whittaker Reacts to Season 4's “Politically Terrifying” Ending

Published Oct 17, 2026, 11:11 AM EDT

Taylor Gates is an Indiana native who earned her BFA in Creative Writing from the University of Evansville. She fell in love with entertainment by watching shows about chaotic families like Full House, The Nanny, Gilmore Girls, and The Fosters.

After college, she moved to Los Angeles to pursue a career as a writer, editor, and filmmaker. Today, she’s a sucker for dramedies — especially coming-of-age stories centering around complex female and LGBTQ+ characters. She has been with Collider since May 2022.

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Editor’s note: This interview contains spoilers for The Diplomat Season 4.

Summary

• Jodie Whittaker discusses her iconic introduction into The Diplomat Season 4 and the major differences between how Vaughn and Trowbridge operate.
• Whittaker shares what it was like to film that shocking — and moving — finale.
• She also offers hope for more Doctor Who.

The Diplomat has had a core group of characters since Season 1 — ones we’ve grown to love and root for over dozens of episodes. Adding new key players into the mix in Season 4 presents a challenge for even the highest caliber of writers and performers. Luckily, the combination of creator Debora Cahn and actress Jodie Whittaker not only pulls off this feat but exceeds all expectations, giving us one of the most compelling characters in the show’s history in the form of Bethan Vaughn.

Vaughn finds herself unexpectedly thrown into the Prime Minister position after Trowbridge’s (Rory Kinnear) shocking resignation. Though Kate (Keri Russell) is initially relieved — Vaughn has a reputation for being reasonable and pleasant — in some ways, her calm, rational nature proves more difficult to deal with than her volatile predecessor. Between the Poseidon fiasco and the part that Kate played in Trowbridge stepping down, Vaughn doesn’t have a lot of trust in the US government. And can you really blame her?

Collider got the chance to speak to Whittaker about being a fan of the show before she was cast, her character’s iconic introduction, her complicated dynamic with Kate, what’s going through her mind during that wild finale, and more.

‘The Diplomat’s Jodie Whittaker Breaks Down Vaughn’s Memorable Entrance

“I think that’s what’s so clever about the show — it celebrates intellect.”

COLLIDER: Your character has such an iconic introduction. The first time we meet her, she’s berating her assistant for speaking too quietly, and then we realize it was all orchestrated to get Kate out of the office. How did you approach that first scene? I feel like it tells us a lot about her.

JODIE WHITTAKER: I loved the dynamic of it. The writing on the show is so clever, not just because it’s intricate or how hugely complex some of the themes are, but it also manages to — in a very short space of time — give you very definite characterization. Often, when you're reading something, you're kind of going, “Okay, well, who is this person? How do I approach it?” I saw the show before I was a part of it, so I'm coming at it as a fan, as well as someone who's now in it. But what's brilliant is, you're given, in such a short scene, such a punchy introduction because we see the cleverness at play. I think what's so brilliant about all these characters is there's no fear of showing people's intellect and people's ability to control a situation if they are masking the fact that they don't have all the info.

The thing about the introduction to Vaughan is that this is quick. This isn't a two-year campaign. Nobody is used to this idea, let alone her. I love the fact that she has this really fantastic relationship she can use with essentially her secretary to tag-team. Having two intelligent women sit opposite each other, I think that’s what’s so clever about the show — it celebrates intellect in a way that's not always the case. Things are very often dumbed down or simplified, and what I love about The Diplomat is that it never does that. It never chooses the simplest option. The vocabulary everybody is given is really lyrical, and there are complicated, high-concept storylines, but it’s done in such an accessible way.

I feel both smarter and dumber watching the show. I’m definitely learning things.

WHITTAKER: When you first started watching it, however many years ago, you felt like you were watching something quite heightened; now, it’s like I’m watching a documentary. That’s the weirdest thing ain the amount of time since it came out. It wasn’t heightened in that it felt ridiculous or silly — it was this really brilliant television show that had these situations that you just couldn't imagine ever happening. And now you’re like, “Oh, wow. We’re in a reality TV show now.”

I love how she says in that conversation that she was an acid house devotee when she was younger. Do you think that's true?

WHITTAKER: Okay, so, I think I'm safe to say that there was a musical reference there that, generationally, felt above me to say. I couldn't quite connect to the first musical reference because I was a teenager in the ‘90s, so that was my reference point. I love that you've picked up on that and that hasn't been cut because I haven't seen it. But that was actually a conversation with myself and Deb and just basically me kind of saying, “Actually, this is a reference to music that I was — and still am — kind of massively into.” But I think it places her, particularly in the UK, at a very specific moment, which is the late ‘90s, early 2000s. I love that you’ve picked up on that. It says more about me than Bethan.

‘The Diplomat’s Jodie Whittaker on the Major Differences Between Vaughn and Trowbridge

“You want someone who is trying to minimize chaos rather than dine out on it.”

Image via Netflix

Vaughn says, “I only have good things to say about my predecessor, but if all goes well, my behavior in office will resemble nothing about his.” I’m curious what you think her dynamic with Trowbridge was like. I'm picking up that it was pretty complex in many ways.

WHITTAKER: You get hints throughout that she had a very behind-the-scenes role. We've all seen that situation where people are trying to manage him or reduce the potential grenade that could go off if he emotionally reacted to something in a way that they wanted steady. She references the fact that she’s going to take her time, she's going to think about things, and she's going to take advice. People have a strange kind of relationship to it: if you need to ask a question, then that means you don't know the answer, and therefore, that gives you some kind of weakness. Whereas what I love is that she’s like, “No, I'm not going to race at something. I'm going to get advice. I'm going to take my time.” All of which is the antithesis of what has gone before.

She is cleverly suggesting that there will be a pace change without being disrespectful to the previous person because, essentially, then you're aligning yourself with another country in a way that you can't do in that moment. In the UK, if there is a transition of power — and I have lived through very many in the last like 10 years — it feels edgy for people, and so you don’t want to see someone who’s quick to chit-chat. You want someone who is trying to minimize chaos rather than dine out on it.

She's dealing with the Russia situation, and there is also a deteriorating relationship with the US. What percentage of her decision-making do you think is truly pragmatic for the good and the safety of her country, and how much do you think is influenced by her distrust and dislike for what Grace Penn and that administration are doing?

WHITTAKER: I suppose they go hand-in-hand. Essentially, what it feels like is the decision for one country isn't right for another. I suppose what Bethan is battling with then is not to affiliate with another nation that is unpredictable. The problem is that, historically, they didn't feel like uniting with the US would be an unpredictable exchange.

That is why I would never get into politics. These things are too complicated for me — they go over my head. I think the balance between keeping relationships that are important going but then also managing the progression of your own state or your own country is not a job I would wish for. But that's how cleverly it's been construed — there's no archetypal good or bad in this in a great way. Everybody is complicated, everybody is making mistakes, everybody is making excellent points, and politically, you can be the other end of the spectrum to somebody, but then there is some kind of nugget of truth to be said coming from everybody. That's why it makes it such an interesting show — actually, everybody is making a point, but there is behavior in some characters that you would maybe choose to emulate or choose not to follow in the footsteps of.

We get a sneak peek into her marriage by learning that her husband owns this big house that she doesn't like, and he doesn’t understand social cues. The show is so great because it has all these marriages at the center. I'm curious how those tidbits informed how you understood and approached her.

WHITTAKER: There's a class system in the UK that is really apparent. There are definitely places in the US where that class system is in place — and this is not a comment on America at all — but generally, in the UK, the minute you open your mouth, there is a decided thing about you. Whereas for me, in my ignorance, I couldn't necessarily place people in the US. But that's maybe just because I'm English. Maybe an American could absolutely place you and say, “This is your childhood, this is your upbringing, and this is what state you're from.” I can't hear it, necessarily. Whereas if I open my mouth in the UK as me — as Jodie — there's a very definite presumption about my childhood that would be presumed and not accurate because of my accent, but then also a lot of it would be correct. So that old generational money tells you so much about somebody. That's not even the character that she's playing, but it does tell you about a particular world that they're in. She has come up probably privately educated and will have gone to a very top university.

These are fantastic little details about marriage and about motherhood, and it’s just done in a line. We don't do a whole thing where we see them having dinner or having an argument — there's none of that. It’s said in a connecting way between Kate and Bethan. It’s a uniting thing. And I think that's what's frustrating — you know they'd get on if they weren't positioned in these places at work. They would definitely align and get on, not necessarily 100% in their standing in their politics, but they'd certainly respect each other. Certainly, there is mutual respect. And I think that comes from the fact that they're open about their personal relationships. They’re open about the fact that she's gone home because she needs to parent. They’re admitting to the domesticity among the grandness. That's why I find The Diplomat such a fascinating show — you see all of it. You see people trying to have relationships and trying to do all the things that these people still have to do.

‘The Diplomat’s Jodie Whittaker Talks Shooting That Shocking Season 4 Finale Scene

“It would be a politically terrifying moment for all those heads of state.”

Image via Netflix

Of course, we have the iconic finale cliffhanger that we have every single season.

WHITTAKER: Oh my god, being a part of that scene…obviously, I wasn't part of the very, very last bit, so I really can't wait to see the walking. But just being in that environment with all of those amazing actors from all over the world, recreating the G7 in the most incredible set, listening to Allison. Everybody in it is such a gold-star [performer], so being an actor in a room with all those people, it was epic.

And it was so moving, obviously, when Kate first went, but when Billie stood up, I felt the hairs on the back of my neck stand up every time. We did take after take, but I think Billie — particularly because of Nana's like face when she does it — is just so moving. I found the whole thing completely amazing but also brilliant that you don't know about Hal until the last bit. My sister-in-law's a massive Diplomat fan, and she's quite worried that me being in it is gonna ruin it. I'm like, “Babe, there's so much stuff that you're gonna love. So much stuff.”

What do you think is going through Vaughn's head?

WHITTAKER: “Holy fucking shit! What is going on?” The first thing is obviously the speech and having to poker face — probably not very subtly — in silence in response to what is said. It's monumental because, as tingly as it is, it would be a politically terrifying moment for all those heads of state.

I'm an actor who's a fan of the show, so I think, “Oh yeah, I'm behind whatever they do. Whatever Kate decides, I'm with it.” But the reality of it is a grenade. It can morally be the right decision, but it doesn't necessarily mean the fallout can be contained. They leave it in a way that you're literally like, “Are you fucking kidding me?”

Every year! Every year.

WHITTAKER: The last one? Jesus.

Jodie Whittaker Gives Hope for the Future of ‘Doctor Who’

“What is so magical about it is every and any direction is a possibility.”

Image via BBC

I have to ask about Doctor Who. That scene in the last season with you and Ncuti was so beautiful. With the future of that show kind of up in the air, it could go in a lot of directions. What do you hope happens with that?

WHITTAKER: I think that the beauty of this show is that it has its moments of pause. It always has. A show can't run this long and not have its moments of pause, but what is so magical about it is every and any direction is a possibility. What a fucking great thing. There is limitless possibility in any direction it can ever go, and that continues to keep fans, but it will also mean that, for the next generation of Whovians, their doctor can be whoever in whatever moment. I think that’s why it's so special and reaches people. You can go back over it, and you can enter into it at any point, but what you can't do is predict the future of it, and that has only ever been exciting.

I love the show. I'm a new Whovian. I’d never watched it before — I’d only seen the odd episode before I was in it. It's such a special thing, and I've made friends for life. I've talked to Mandip like three times today. We haven't done the show since 2021, but John texted me two days ago, you know? It's this really beautiful, magical family, and no matter what, it will grow, and grow, and grow. I can be, like, 75 and still welcome new cousins, sisters, brothers. It's magical in that way.

The Diplomat Season 4 is now streaming on Netflix.

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  Ambassador Kate Wyler

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  Hal Wyler

The Diplomat follows a career diplomat who, amid an international crisis, is thrust into a high-profile role she is ill-prepared for, creating significant challenges for both her marital and political aspirations.