The Diplomat · S3E8

Schrodinger's Wife

October 16, 2025

Kate must use all her leverage and political instincts to avert a catastrophe at a high-stakes summit — with the fate of nations hanging in the balance.

Available in the United States on

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Episode cast

Allison Janney

President Grace Penn

Bradley Whitford

Todd Penn

Nana Mensah

Billie Appiah

Pandora Colin

Lydia Trowbridge

Brian Kim

Agent Vosler

Aidan Turner

Callum Ellis

Tracy Ifeachor

Thema Aseidu-Dennison

Nigel Gore

Ralph

Timothy Smallwood

Porter

Show full cast (6 more)

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

Show status

Season concluded. The show will return with new episodes, air date to be announced.

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