Tags: Television Season.
The fifth and final season of the military science fiction television series Stargate Atlantis commenced airing on the Sci Fi Channel in the United States on July 11 2008 concluded on the same channel on January 9 2009 and contained 20 episodes. The show itself is a spin off of its sister show Stargate SG-1. The season upgrades previous supporting characters cast members such as Richard Woolsey (from Stargate SG-1) and Jennifer Keller.