eason nine of Stargate SG-1, an American-Canadian television series, began airing on July 15, 2005 on SCI FI. The ninth season concluded on March 10, 2006, after 20 episodes on the same channel. The series was originally developed by Brad Wright and Jonathan Glassner, and Brad Wright, Robert C. Cooper, Joseph Mallozzi and Paul Mullie served as executive producers. The season arc centers around the new threat of the Ori, a race who Daniel Jackson and Vala Mal Doran unleash in an unknown galaxy, and who are threatening to prepare for a crusade into the Milky Way galaxy to convert the beings to their religion called Origin.

Season nine regular cast members included Ben Browder, Amanda Tapping, Christopher Judge, Beau Bridges, and Michael Shanks. Claudia Black appeared in a recurring role for eight episodes. The ninth season begins with General Hank Landry having assumed command of Stargate Command, and newcomer Lt. Col. Cameron Mitchell trying to regroup the SG-1 team after the events of the eighth season.

Overview from themoviedb.org