Donal O'Sullivan is known for Slackers (2002), Mad City (1997) and Deadly Delusions (1999).

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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

Devon Sawa, Jason Schwartzman, Jaime King, Michael C. Maronna, Laura Prepon, and Jason Segel in Slackers (2002)

Dustin Hoffman and John Travolta in Mad City (1997)

Ronny Cox, Emily Lipoma, Ross Malinger, Briana Michaud, Katie Stuart, and Lindsay Wagner in Frog and Wombat (1998)

Donal O'Sullivan(I)

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