In 1997, Jonathan Glassner and Brad Wright co-developed "Stargate SG-1", a television series intended to continue the story laid down by the original film. Although new actors were cast, several roles from the film were reprised, including the main characters Daniel Jackson and Jack O'Neill (which was re-spelled to include an extra "L"). The Stargate Command setting was transferred from a fictional military facility located in Creek Mountain, to the Cheyenne Mountain Complex. Other variations and differences between the original film and "SG-1" mostly concern the location of the planet Abydos, the alien Ra, the race of Ra's underlings (Jaffa), and Stargate travel.