The fourth season of The Diplomat has landed on Netflix, and it's already got fans buzzing with its trademark blend of high-stakes political maneuvering and razor-sharp dialogue. But beyond the twists and turns, the season's biggest talking point has been the on-screen reunion of two beloved actors from a certain White House drama. Now, the show's casting director is pulling back the curtain on how that came to be.
In an exclusive chat with Collider, Julie Schubert, the casting mastermind behind the series, opened up about the process of assembling the cast from day one. She revealed that Bradley Whitford, who joined the show in Season 3 as Grace Penn's husband Todd, was always on her radar. In fact, he was a name that came up as early as the very first season.
"Bradley has been someone we've talked about from Season 1. It was always a matter of, not if, it was when," Schubert said. "I think when Todd came about, and his availability opened up in a way that hadn't been before, it was a very easy conversation. It wasn't about recreating The West Wing. It was about creating a dynamic between two incredibly talented actors."
For fans who grew up watching Whitford's Josh Lyman and Allison Janney's CJ Cregg trade barbs in the West Wing, seeing them as a married couple in the highest echelons of power is a treat. But Schubert is quick to point out that the magic isn't about nostalgia—it's about the actors' ability to create something entirely new. "I think why it works is because it's not The West Wing, and they're not playing the same characters," she explained. "There's a nostalgia of being able to enjoy them, and seeing them in frame together, but they have created two entirely different roles and dynamics and relationships, and I think, because they are such consummate actors, you really fall in."
Schubert also shed light on the casting of Jodie Whittaker as the new British Prime Minister, Bethan Vaughn. Whittaker, known for her iconic turn in Doctor Who and her gripping performance in Broadchurch, was the first and only choice for the role. "Jodie is an incredibly gifted actor. She's funny, she's grounded, she's real," Schubert said. "She has all of these things, and you see it in her body of work, like Toxic Town, and even Doctor Who... She hasn't necessarily fully broken into the United States yet, but she's incredibly well known in the UK."
For Schubert, the role was a chance for Whittaker to stretch her muscles in a way she hadn't before. "This is one of those opportunities where this is a role that she hasn't gotten to sink her teeth into in the previous work, but you can see from her previous work how dynamic and interesting her choices are and how grounded she is," she added. "She was the first person on the list for me, and the first conversation I wanted to have."
The result is a season that feels both fresh and familiar, with the Penns' marriage adding a new layer of intrigue to an already complex political landscape. If you haven't caught up yet, the latest season of the political thriller is streaming now on Netflix, and it's well worth the binge.
For more on the casting process and what's next for the show, stay tuned to Collider. And if you're in the mood for more behind-the-scenes insights, check out our interview with Annie Potts about another beloved TV reunion.
