Katie Hartsoe is known for Okja (2017), Mean Girls (2024) and A Complete Unknown (2024).

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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

Tim Meadows, Tina Fey, Christopher Briney, Reneé Rapp, Jaquel Spivey, Angourie Rice, Bebe Wood, Avantika, and Auli'i Cravalho in Mean Girls (2024)

Timothée Chalamet in A Complete Unknown (2024)

Rachel Brosnahan in The Marvelous Mrs. Maisel (2017)

Katie Hartsoe

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