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).
Prehistory is an anthology series of nature documentaries about the history and life of Earth. Each episode follows the stories of various creatures of their time periods, and narrated by celebrity voices. (Very similar to the Walking with Dinosaurs TV shows and Nature) (CREDIT: cover image is "Dinosour Battle Poster" by David Penfound. The creatures' individual images are from various artists and sources.)
