David Geisler is known for Star Trek: Legacies (2026), Mystery Incorporated and the Threshold of Chaos (2023) and Justice League 1995 (2021).

Mystery Incorporated and the Threshold of Chaos

Make your IMDb page stand out by adding a demo reel

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

Travis Joe Dixon, Scott Woodard, Chase Hofer, Brent Rose, Joy Regullano, T.C. De Witt, James Burzelic, Rene Hack, and Dani J. Scott in Mystery Incorporated and the Threshold of Chaos (2023)

Dawn Joyal, Chike Johnson, Kalan Tauck, Chad Halvorsen, T.C. De Witt, James Burzelic, Courtney Locks, Matt Rasku, Rocky Cusseaux, Amber Luallen, Khaliel Abdelrahim, David Geisler, Maximillian Olmsted, and Dani J. Scott in Justice League 1995 (2021)

Travis Joe Dixon, Dawn Joyal, Scott Woodard, Andy Loud, Phil Tyler, Craig Lee Thomas, T.C. De Witt, James Burzelic, Rene Hack, and Sam Gregory in Blade: Heart of Darkness (2025)

David Geisler

Known for

Credits

Producer

Actor

Editor

Contribute to this page

More to explore

Recently viewed