The Diplomat on Netflix introduces a fascinating cast of characters. But Austin Dennison might just be one of the most intriguing. Played by David Gyasi, Dennison is the British foreign secretary.

The Diplomat is expected to return to Netflix in 2025 with a season 3 of the political thriller starring Keri Russell as the US ambassador to the UK, Kat Wyler, and Rufus Sewell as her husband, Hal.

Rufus Sewell as her husband and fellow diplomat Hal Wyler, and David Gyasi as British Foreign Secretary Austin Dennison. Ali Ahn takes on the role of CIA Station Chief Eidra Park, while Ato ...