Katherine Griwert is known for Frontline (1983), 20 Days in Mariupol (2023) and Un(re)solved (2021).

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"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

&quot;The Gentlemen&quot; and &quot;Slow Horses&quot; return this fall, while the &quot;Reacher&quot; spin-off series &quot;Neagley&quot; makes its debut. See our guide of the biggest Fall TV and streaming releases.

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editorial coordinating producer: Frontline

Mstyslav Chernov in 20 Days in Mariupol (2023)

Katherine Griwert

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