Mark Grenier is known for A Snitch's Diary (2013), Vampirex (2008) and Gary from Accounting (2016).

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Get a closer look at some of Hollywood&#39;s perfect pairs.

"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

Greg Wilker and Kelly Buttermore in Vampirex (2008)

Thea McCartan and Jake Lipman in Gary from Accounting (2016)

Mark Grenier

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