Mark Nelson is known for Blue Pig (2019), Honestly (2012) and CSI: Crime Scene Investigation (2000).

Make your IMDb page stand out by adding a demo reel

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

Ted Danson, Marg Helgenberger, Jorja Fox, and William Petersen in CSI: Crime Scene Investigation (2000)

Nathan Fillion and Stana Katic in Castle (2009)

Mark Nelson(XXIII)

Photos1

Known for

Credits

Actor

Producer

Contribute to this page

More to explore

Recently viewed