SG team - Definition and Overview

In the fictional universe of the Stargate SG-1 television series, the "SG" designation denotes that the team is a part of the Stargate program, while the number following the Stargate designation is to distinguish between separate Stargate teams. Certain teams have special duties within the Stargate program. When Stargate Command was formed there were nine SG teams created and at present there are at least twenty-one. The majority of the teams are Air Force, with some Marines and civilians. A very few alien beings have also been allowed to join. Listed below are the special designation teams noted thus far in the series:

Special SG Team Designations :

• SG-1 - Exploration. Originally led by Colonel Jack O'Neill, with Captain Samantha Carter and Doctor Daniel Jackson. Teal'c joined SG-1 shortly after. For a time, Jonas Quinn took the place of Dr. Jackson. With Colonel O'Neill's promotion the team is now led by a promoted Lieutenant Colonel Samantha Carter.
• SG-2 - Military. Originally a three-man team led by Major Charles Kawalsky, with Warren and Casey. After Kawalsky's death, led by Major Louis Ferretti. Later led by Major Coburn, with Captains Griff and Pierce. Later led by a promoted Major Griff. Currently a Research team with Major Penhall.
• SG-3 - Marine Combat Unit led by Colonel Makepeace, with Lieutenant Johnson and others. Apparently command rotated as Majors Castleman and Warren, as well as Colonel Makepeace were shown in command for the same period of time. Teal'c was once assigned to this unit, under Major Wade. Now a Military team led by Air Force Colonel Reynolds, with Bosco and Peterson.
• SG-4 - Original team designation unknown. Became a team made up of Russian personell led by Lieutenant Colonel Sergei Ivanov, who was captured and killed.
• SG-5 - Marine Combat Unit. Later an Air Force team with a Lieutenant Barber that died from exposure to an alien radiation. Later became a Miltary unit led by Major or Lieutenant Colonel Harper.
• SG-6 - Medical. No team members ever named.
• SG-7 - Scientific Corps, all killed on Hanka. No team members ever named.
• SG-8 - Medical. No team members ever named.
• SG-9 - Diplomatic Corps, originally led by Captain Jonas Hanson with Lieutenant Baker and Doctor Frakes all killed in action. Lieutenant Conner survived the mission and went on to another lead SG-11. Latter led by attorney Major Stan Kovachek. Still latter led by Major Benton, with Lieutenant Grogan, Tarkman and Winters, who all were killed in action.
• SG-10 - Military. Originally led by Major Henry Boyd, entire team trapped by a black hole.
• SG-11 - Engineering Corps. Initially led by Captain Conner, promoted after leaving SG-9. Entire team captured and later executed. Later became Archaeological led by Major Hawkins, Loder, Sanchez and Doctor Robert Rothman, who all were killed in action. Probably Engineering again, under Colonel Edwards, with Major Lorne, Lieutenant Menard, Lieutenant Ritter, and Lieutenant Woeste, SG-11 led an extended mining survey.
• SG-12 - Military. No team members ever named.
• SG-13 - Survey. Led by Colonel Dixon with Doctor Balinsky, Bosworth and Wells.
• SG-14 - Diplomatic. Led by Major Graham, with Captain Blasdale, Lieutenant Astor and Sergeant Louis. Graham and Astor became zatarcs and were later killed. Blasdale and Louis also died.
• SG-15 - Military No team members ever named, but all were killed. Later led by a promoted Major Pierce from SG-2.
• SG-16 - Exploration. Originally led by Lieutenant Colonel Reynolds, who now leds SG-3.
• SG-17 - Archaeological. Originally led by Major Mansfield, with Lieutenant Elliot, entire team killed in action.
• SG-18 - Unknown. No team members ever named.
• SG-19 - Unknown. No team members ever named.
• SG-20 - Unknown. No team members ever named.
• SG-21 - Unknown. No team members ever named.

Other Team Designations :

• SG-X - Not part of Stargate Command, but a group of human slaves under training by jaffa in service to Apophis to infiltrate Earth.
• 1st SFW - There is also at least one wing of F-302 pilots, although they are not truly an SG team. It is not made clear what SFW actually means, but it is possibly Stargate Fighter Wing or something similar.