Sidney Flack was born on 10 December 1957. He is an actor and writer, known for I Stand: The Guardians of the Water (2017), Off Butterfly Wings and In Sickness & In Health (2019).

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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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Streaming Stars, Then and Now

On the set of Gosnell with actor/director Nick Search, and actresses Kasey Weir & Leesa Winkler Neidel.

On set between takes of Children of the Corn: Runaway, with director John Gulager.

Sidney Flack as Brigadier General Douglas H. Cooper, The Battle of Honey Springs.

I Stand: The Guardians of the Water (2017)

Bryan Whorton and Sarah Smith in In Sickness & In Health (2019)

Sidney Flack

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