Kiersten Armstrong is known for Plus One (2019), Adam Ruins Everything (2015) and The Onion (2007).

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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.

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

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"Plus One" premiere TriBeCa Film Festival 2019

Maya Erskine and Jack Quaid in Plus One (2019)

Adam Conover in Adam Ruins Everything (2015)

Kiersten Armstrong

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