Amid an international crisis, a US diplomat contends with her high-profile job as ambassador to the UK and her strained marriage to a political star.
Keri Russell
Ambassador Kate Wyler
Rufus Sewell
Hal Wyler
David Gyasi
Foreign Secretary Austin Dennison
Ali Ahn
Eidra Park
Rory Kinnear
Prime Minister Nicol Trowbridge
Ato Essandoh
Stuart Hayford
Bradley Whitford
Todd Penn
Allison Janney
President Grace Penn
