Guillaume Arnault is known for Dark Hearts (2023), Marseille (2016) and Mother (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.

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

Streaming Stars, Then and Now

Nicolas Duvauchelle, Tewfik Jallab, Nina Meurisse, Victor Pontecorvo, Marie Dompnier, and Jeremy Nadeau in Dark Hearts (2023)

Marta Nieto and Jules Porier in Mother (2019)

Guillaume Arnault

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