Bradley Whitford and Allison Janney as Grace Penn in season 3 of 'The Diplomat.' Courtesy of Netflix Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text The new first couple on The Diplomat will be staying around for a while. The Netflix series has upped Allison Janney and Bradley Whitford to series regular status for its fourth season. The two Emmy winners are billed as guest stars in season three of The Diplomat, which is set to premiere Oct. 16. Season four is set to begin production in the fall, which can keep the show on track for a return sometime in 2026. Janney joined The Diplomat in the show's second season, playing Vice President Grace Penn - who (spoiler alert) will be ascending to the presidency following the death of President William Rayburn (Michael McKean) in the final moments of the season. Whitford plays Grace's husband, Todd Penn, with whom Ambassador Kate Wyler (Keri Russell) forms an "unnerving bond," per the show's logline for the coming season. Related Stories TV 'The Diplomat' Season 3 Trailer Has Allison Janney's President "About to Do Something Apocalyptically Dumb" Movies Benedict Cumberbatch Calls 'The Roses' a "Date Night Film" Despite Its Dark Themes Whitford's casting is a West Wing reunion for not just him and Janney, but also for series creator Debora Cahn, who was a writer and producer on the NBC drama. "Working with Allison and Brad, watching them together again, and the off the charts foursome that is them with Keri and Rufus [Sewell] ... it's an insane bag of candy," Cahn said in a statement. "Our expectations were high, and it blew right past them." Here's the full description for season three of The Diplomat: "Kate 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 (Sewell) 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 U.K. Foreign Secretary Austin Dennison (David Gyasi), and an unnerving bond with First Gentleman Todd Penn." Cahn executive produces the series with Janice Wiliams, Russell, Alex Graves, Peter Noah and Eli Attie. THR Newsletters Sign up for THR news straight to your inbox every day Subscribe Sign Up Sony Pictures Television Sony Pictures TV's Keith Le Goy to Keynote MIPCOM Sports Live From New York... It's a Ryder Cup Comedy Morning Show The Fien Print 'Chad Powers' Review: Glen Powell's Hulu Football Comedy Is a Disappointingly Conventional Farce With a Late-Game Hail Mary Live Feed The Secret to TV Ratings Success? Trump Trying to Cancel You Live Feed Glen Powell Says Tom Cruise Was His "First Call" for Prosthetics Advice in 'Chad Powers': "He Pointed Us in the Right Direction. ... We Thank TC for That" Live Feed Streaming Ratings: 'KPop Demon Hunters' Ascends to No. 1 Overall Sony Pictures Television Sony Pictures TV's Keith Le Goy to Keynote MIPCOM Sports Live From New York... It's a Ryder Cup Comedy Morning Show The Fien Print 'Chad Powers' Review: Glen Powell's Hulu Football Comedy Is a Disappointingly Conventional Farce With a Late-Game Hail Mary Live Feed The Secret to TV Ratings Success? Trump Trying to Cancel You Live Feed Glen Powell Says Tom Cruise Was His "First Call" for Prosthetics Advice in 'Chad Powers': "He Pointed Us in the Right Direction. ... We Thank TC for That" Live Feed Streaming Ratings: 'KPop Demon Hunters' Ascends to No. 1 Overall