'The Diplomat' Season 4 Cast Shakeup: 2 Stars Exit, Many Return, & 1 Was Left Off of Cast List

Netflix The Diplomat is returning with Season Four next week! Fans have been waiting all year for the new episodes, and Netflix has confirmed they will drop on October 15. Here's the synopsis: In Season Four of The Diplomat, two marriages threaten to eat each other alive. One catastrophic moment shatters the fragile peace Kate Wyler brokered between the US and UK, as well as the crumbling marriage she's trying to save. While she fights to stem the bleeding, President Grace Penn and VP Hal Wyler's conspiracy to steal Russia's most powerful weapon hurtles the United States toward war. . . .