|Born||October 27, 1974|
|Birth place||Collier, Georgia|
|Affiliations||United States Army|
|Rank|| Captain (-2009)|
Major (2009-c. 2020)
|Height||5'5" (166 cm)|
|Weight||125 lbs (57 kg)|
- "If you know as little about soldiering as you do about everything else, we're all in trouble. Now shut up and follow my lead."
- — Grey's Specialist quote
Susan Grey was born October 27, 1974 in Collier, GA. Her father Warren was a civil engineer and her mother Dolores was a librarian, and they separated in 1978, with her mother winning custody. Grey moved to Valdosta, GA in 1979. She ran cross-country and track in high school, while excelling at neither, and was named national Merit Scholar in 1992. Grey won a 75% scholarship to Georgia Institute of Technology, where served in the Reserve Officer Training Corps. She earned a double major in Mechanical Engineering and Psychology before working for Southern Company for one year after graduation, then abruptly resigned position and entered active duty.
She was assigned to Ft. Gordon and attached by special assignment to the 513th Military Intelligence Brigade before she was recruited by Special Forces in 1999. She was then assigned to the Ghosts in June, 2004.
Grey served with the Ghosts against Ultranationalist Russia, and against the pro-communist agents of Ariel Priego in Cuba.
When Captain Scott Mitchell met her at his promotion party in June 2007, she was assigned to command D Company, of 1st Battalion in the 5th Special Forces Group. She gave him information about the Ghosts.
Later, Grey was promoted to the rank of Major. She controlled a rescue mission in Waziristan in January 2009 where Mitchell field-tested the Cross Coms. She questioned his decision to get Sergeant McDaniel onto the Blackhawk first.
During World War III, when General Mitchell led the JSF, Lieutenant Colonel Grey led Ghost Recon. She was supposed to debrief Captain Alexander Brent after his failed mission to apprehend the Snow Maiden, but he went to Mitchell instead.
Grey is perhaps the single most disliked member of the Ghosts. This circumstance is not mitigated by either her remarkable skill with small arms, or her propensity for explaining to others exactly how skilled she is. She is not shy about showing off her knowledge or capabilities, and has acquired the nickname "Howitzer" for her habit of pounding conversational opponents into dust. Her other, less flattering nickname is "The Ice Queen", and she seems to enjoy playing the role.
Grey does not talk about her previous service, her family, her home or her childhood. Her focus is entirely on the job at hand, though at times she does seem inordinately interested in the details of others' experience. She has never expressed any interests of her own outside of work, but she is remarkably well-informed on a variety of subjects. She generally demonstrates this by correcting inaccuracies in others' statements, regardless of whether or not she was originally part of the discussion. She speaks at least a smattering of Russian, Spanish and German, and does so without hint of an accent. Grey entertains a particular dislike for Lindy Cohen, and the feeling is mutual.
- Susan Grey is an unlockable specialist for Ghost Recon.