Sidney Allison is known for All Cheerleaders Die (2013), Headgame (2018) and Heavy Water (2014).

Sidney Allison at an event for Insidious: Chapter 3 (2015)

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The Biggest Movies and TV Coming in September

"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.

Get a closer look at these actors from their many TV and streaming series roles.

Streaming Stars, Then and Now

Brooke Butler in All Cheerleaders Die (2013)

Jake Roberts, Carter Jenkins, and Wes Watson in Heavy Water (2014)

Sidney Allison

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