As the SGC adheres to American ranks, each military character will be assigned their equivalent rank in the US Forces system. Below is a list of each character, their country, their armed service, their original rank and their US equivalent. This will help with creating the rank structure in the SG units. Non-military characters are all classed as civilians, and their place and rank within a team will be determined by their function and the mission runner.

Also a point of note, just because someone is a commissioned officer, it does not mean they automatically outrank a non-comm. A Sergeant Major, for example, is going to hold more authority than someone of OF-2 (Captain) rank and below. Major (OF-3) technically is of equal rank to a Sergeant Major. It is once it gets to OF-4 (Lt. Colonel and equivalent) that the top grades of the non-commissioned ranks start getting automatically outranked by the commissioned officers.

The below table is ordered by rank of current characters, in descending order. Their grades are included for reference. Where they are of equal rank, the US characters are listed first.

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CHARACTER	COUNTRY	SERVICE	NATIVE RANK	US RANK	NATO GRADE
Serigliano, Fiametta	USA	US Air Force	Major	N/A	OF-3
Taft, David	USA	US Marines	Sergeant Major	N/A	OR-9
Burke, Jason	USA	US Army Rangers	Captain	N/A	OF-2
Royston, Charlie	USA	US Air Force	1st Lieutenant	N/A	OF-1
Williams, Caleb	UK	Royal Navy	Chief Petty Officer	Chief Petty Officer	OR-7
Blake, Meredith	USA	US Army	Staff Sergeant	N/A	OR-6
Torngate, Christopher	USA	US Air Force	Senior Airman	N/A	OR-4