The Goa'uld (pronounced go-AH-oold; commonly shortened to /ɡoʊˈuːld/go-OOLD or /ˈɡuːld/GOOLD) are a fictional symbiotic race of ancient astronauts from the American-Canadian military science fiction television franchise Stargate. The Goa'uld are parasites from the planet P3X-888, integrated within a host, most of the time a human. The resulting creatures are a powerful race bent on galactic conquest and domination, largely without pity, compassion or remorse. In the first eight seasons of Stargate SG-1 they are the greatest extraterrestrial threat to Earth known to the Stargate Command (SGC). The Goa'uld are the main enemies of SG-1 for most of the show, until they are replaced in this capacity by the Ori in seasons 9 and 10. They also appear in the Stargate Atlantis episode "Critical Mass", and in the DVD movie Stargate: Continuum. They are pejoratively called "snakes" or "snakeheads" by Jack O'Neill.

The Goa'uld were created by writers Dean Devlin and Roland Emmerich for the 1994 movie, Stargate. Although the alien race in the film was never named, the pilot episode "Children of the Gods" (1997) established that the alien race seen in the movie are the Goa'uld. In the series it is confirmed that they are a parasitic race which uses hosts to survive. They were the dominant species in our galaxy.

Read more about Goa'uld:  Development, Characteristics, Society

Other related articles:

List Of Recurring Alien Characters In Stargate SG-1 - Goa'uld
... The Goa'uld are the dominant race in the Milky Way and the primary adversaries from seasons 1 to 8 of Stargate SG-1 ... The Goa'uld symbiote then takes control of its host's body and mind, while providing longevity and perfect health ... Thousands of years ago, the Goa'uld ruled over Earth, masquerading as gods from ancient mythologies ...
Goa'uld - Society - As False Gods and Opposition
... One of the most prominent pieces of Goa'uld society is their tendency to pose as gods to other, weaker races, mostly humans and Jaffa ... Goa'uld are shown to do this because of the luxury and power it brings, and to have their followers mine naqahdah ... Ra") are a benevolent offshoot of the Goa'uld who oppose them philosophically and militarily ...