Thomas Ellis Gibson (born July 3, 1962) is an American actor and director. He portrayed Daniel Nyland in the CBS series Chicago Hope, Greg Montgomery on the ABC series Dharma & Greg, and Aaron Hotchner on the CBS series Criminal Minds (2005–2016).
The year is 2500. The Place is Old Earth. Once the shimmering blue jewel of the galaxy, Old Earth is now a contaminated planet abandoned for centuries. Yet humans have returned to the deadly place that they once fled. Not to live, but to research the ancient rusting artifacts of the bygone civilizations that caused this environmental disaster. And little does the most recent landing party of intrepid young explorers realize the fate that awaits them.
