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The Diplomat season 3 will release a highly anticipated new chapter in the political drama in Fall 2025. A teaser for the upcoming season was released by Netflix on June 12, 2025. It gave viewers a glimpse into what they could expect from The Diplomat season 3.
The story follows US diplomat Kate Wyler as she explores the fast-changing nature of her high-stakes job. The finale of last season left viewers shocked with its big revelation involving Vice President Grace Penn and the sudden death of President Rayburn.
The series stars Keri Russell, Rufus Sewell, David Gyasi, Allison Janney, and Ali Ahn in prominent roles. The series created by Debora Cahn has become one of the most-watched political shows on Netflix since its premiere on April 20, 2023.
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The Diplomat season 3 teaser was released on June 12, 2025
The trailer for the third season of the intense political drama was released on June 12, 2025, on YouTube and other social media platforms. The 64-second clip provided glimpses of what is to come, showcasing the increased tension in Kate's life after President Rayburn's unexpected death, after Hal revealed the truth about Penn.
The Diplomat season 3 is scheduled to be released on Netflix this fall. The exact release date or the number of episodes has not been revealed yet.
What to expect from The Diplomat season 3?
Tudum published an article about the show on June 12, 2025, where Debora Cahn discussed the third season. She stated that the upcoming season will change the dynamics of the game that the characters are used to in the complicated political arena.
"Season 3 flips the chessboard. In Season 3, Kate lives the particular nightmare that is getting what you want,” she added.
Another reason for the anticipation of the new season is the inclusion of the Emmy Award Winner, Bradley Whitford, in the primary cast. He will be seen as Grace Penn's husband, Todd Penn.
From the teaser, it seems that his presence will stir up Kate's life as she now has to deal with Grace as the new President, whom she had just accused of hatching a terrorist plot and admitted she’s after the VP’s job.
Whitform shared his excitement about joining the cast with Tudum, saying that he was "thrilled" to hear that "Debora was interested in me doing something."
"I had no idea what it was, but I love the show. I was jealous of the writing on this show. I love Keri. I love Rufus. And I hear Allison Janney is good at acting, too. It’s an amazing cast," he added.
Who is in the cast of The Diplomat season 3?
Below is the list of actors and the roles they play in the series:
- Keri Russell as Katherine "Kate" Wyler
- Rufus Sewell as Hal Wyler
- Allison Janney as Grace Penn
- David Gyasi as Austin Dennison
- Ali Ahn as Eidra Park
- Ato Essandoh as Stuart Hayford
- Rory Kinnear as Nicol Trowbridge
- Bradley Whitford as Todd Penn
- Celia Imrie as Margaret Roylin
- Nana Mensah as Billie Appiah
- Miguel Sandoval as Miguel Ganon
- Pearl Mackie as Alysse
- Penny Downie as Frances Munning
- Christine Kavanagh as Gwen Hempill
Stay tuned for more news and updates on The Diplomat season 3 and other films and TV shows on Netflix.
