‘The Diplomat’: How Kate & Hal’s Seismic Shift Could Define Season 4

Kelli Boyle •November 28, 2025, 10:00 am
Keri Russell as Kate Wyler, Rufus Sewell as Hal Wyler in 'The Diplomat' Season 3 Episode 5
Liam Daniel / Netflix
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Kate Wyler (Keri Russell) realized she can’t live without Hal (Rufus Sewell) in The Diplomat Season 3 finale. This came after their most serious separation ever, one that lasted months and saw Kate connect with a new lover, Callum (Aidan Turner). But there’s always something going on with Hal.

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Rufus Sewell
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