Alexandra "Alex" Quinn is an NCIS Special Agent formerly attached to the Federal Law Enforcement Training Center (FLETC) and who for a year served as a member of the main NCIS Major Case Response Team led by NCIS Special Agent Leroy Jethro Gibbs before ultimately resigning from the team for good presumably some time prior to September 2017 to take care of her mother who had developed Alzeheimer's.
NCIS Season 14
Quinn is a woman in her mid forties with tanned skin, curly brown hair with blonde highlights and brown eyes.
Like NCIS Senior Special Agent Timothy McGee and NCIS Probationary Agent Eleanor Bishop, Quinn wears her watch on her right wrist.
For a more detailed list, see Alexandra Quinn/List of Appearances.