Katie O'Mahony is known for Oddity (2024), Never Grow Old (2019) and Blackbird (2018).

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Get a closer look at some of Hollywood's perfect pairs.

Hollywood Power Couples

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

John Cusack, Emile Hirsch, and Déborah François in Never Grow Old (2019)

Eric Roberts, Patrick Bergin, Michael Flatley, and Nicole Evans in Blackbird (2018)

Christopher Lloyd and Max Records in I Am Not a Serial Killer (2016)

Katie O'Mahony

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