The Diplomat: Season 3

2025 · 8 episodes · ★ 7.9

What Season 3 of The Diplomat

Ambassador Kate Wyler lives the particular nightmare that is getting what you want. She just accused Vice President Grace Penn of hatching a terrorist plot and admitted she's after the VP's job. But now the President is dead, Kate's husband Hal may have inadvertently killed him, and Grace Penn is leader of the free world. None of this slows Hal's campaign to land Kate the vice presidency. Kate steps into a role she never wanted, with a freedom she never expected, an increasingly complicated friendship with Foreign Secretary Austin Dennison, and an unnerving bond with First Gentleman Todd Penn.

8episodes

Oct 16, 2025aired

6.5 hrtotal runtime

Season 3 Episodes

3x01 Emperor Dead
Oct 16, 2025 · 42 min · ★ 7.9
Amid a growing constitutional crisis, the staff scrambles to stage an impromptu inauguration, while Hal exploits the chaos behind the scenes.
Directed by: Alex Graves · Written by: Debora Cahn · Starring: Bradley Whitford, Allison Janney, Nana Mensah, Celia Imrie
3x02 Last Dance at the Country Club
Oct 16, 2025 · 47 min · ★ 7.6
Kate weighs a compelling offer. Eidra faces scrutiny over fallout from the Roylin debacle. Stuart pitches a proposal that goes far deeper than policy.
Directed by: Alex Graves · Written by: Anna Hagen · Starring: Nana Mensah, Celia Imrie, Penny Downie, Tim Delap
3x03 The Riderless Horse
Oct 16, 2025 · 52 min · ★ 7.8
As the nation pauses to mourn, Grace considers the framework of her administration. Private strain threatens Kate and Hal's polished public image.
Directed by: Tucker Gates · Written by: Eli Attie · Starring: Allison Janney, Nana Mensah, Adam Silver, Richard Dillane
3x04 Arden
Oct 16, 2025 · 51 min · ★ 7.8
Kate's unique role grants her access to anyone she wants — except the one person she needs. Dennison puts actionable intelligence to personal use.
Directed by: Tucker Gates · Written by: Jessica Brickman · Starring: Miguel Sandoval, Penny Downie, Tim Delap, Kenichiro Thomson
3x05 Birdwatchers
Oct 16, 2025 · 43 min · ★ 7.9
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.
Directed by: Liza Johnson · Written by: Peter Noah · Starring: Penny Downie, Georgie Henley, Graham Miller, Rosaline Elbay
3x06 Amagansett
Oct 16, 2025 · 50 min · ★ 8.0
At an emergency strategy session, Grace weighs unthinkable choices, while Kate rolls the dice on a gamble that could alter the course of history.
Directed by: Liza Johnson · Written by: Debora Cahn, Peter Ackerman · Starring: Bradley Whitford, Allison Janney, Nana Mensah, Rosaline Elbay
3x07 PNG
Oct 16, 2025 · 52 min · ★ 7.9
Sequestered inside Winfield House as embassies go on alert and allies fall silent, Kate and Callum race to contain a potential disaster.
Directed by: Alex Graves · Written by: Julianna Dudley Meagher · Starring: Nana Mensah, Miguel Sandoval, Penny Downie, Graham Miller
3x08 Schrodinger's Wife Season Finale
Oct 16, 2025 · 55 min · ★ 8.2
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.
Directed by: Alex Graves · Written by: Debora Cahn · Starring: Bradley Whitford, Allison Janney, Nana Mensah, Pandora Colin