Colonel Jack O'Neill, USAF            Jack O'neill is the leader
of the Stargate SG-1 force. His first mission was that he worked
in covert ops but when his son, Tyler/Charlie, accidently shot
himself, he retired from the airforce. He was recalled to help
with the discovery of mankind greatest device.  The Stargate. 
He lead a team to Abydos, the SGC's first mission and he now
leads Dr. Daniel Jackson, Major Samantha Carter and Teal'c from
the evil plots of the Goa'uld.  Richard Dean Anderson is the
actor of Jack O'Neill and Kurt Russel acted O'Neill in the
movie.  Colonel Jack O'Neill ~ Click for the larger image  Dr.
Daniel Jackson  When Daniel was a child, his parents were killed
in a plane crash and he was given up for adoption.  After his
horific experiences, he is now  an Archaeologist, linguist and
culturist.  He loves to learn and study many cultures and
languages. Catherine Langford heard one of Daniel's theries that
the Egyptians didn't build the pyramids but aliens did.  So, she
introduced him to a