Anne Catherine Walker was born on Marine Corps Base Quantico. Her father, George, was an intelligence officer in the United States Marine Corps. Because of that, Annie and her sister Danielle were raised all over the world. Her mother, Mary, was a homemaker. After Annie graduated from high school, she went on to Georgetown University. She graduated from Georgetown with a Bachelor of Arts in History and then enlisted in the United States Marine Corps.
Annie decided to become an intelligence specialist. After recruit training at Marine Corps Recruit Depot Parris Island, she went on to Marine Combat Training at the School of Infantry at Marine Corps Base Camp Lejeune. Annie then attended the Navy and Marine Corps Intelligence Training Center in Virginia Beach, Virginia. Afterwards, she was assigned to the 2nd Intelligence Battalion.
Annie left the Marine Corps after four years of distinguished service and enrolled in the graduate program in linguistics at Georgetown University. Soon after earning her Master of Science in Linguistics from Georgetown, Annie was contacted by a representative of the Central Intelligence Agency and recruited for a position as a CIA intelligence analyst.
However, she wanted to become an operations officer instead. Annie worked an assistant collections manager at the National Museum of American History while she simultaneously went through the CIA application process. Before she could join the Agency, she had to go through a thorough medical and psychological exam, a polygraph interview and an extensive background investigation. Upon successfully completing the entire recruitment process, Annie was accepted as a clandestine service trainee.
After an orientation period, she resigned from her position at the National Museum of American History and went on to the CIA's Special Training Center, Camp Peary - "The Farm," near Williamsburg, Virginia for intensive operational training. There, Annie went through the Basic Operations Course. She was trained in so-called "operational intelligence" or "tradecraft" espionage skills. Because of her military experience, Annie excelled through training.
After completing the Clandestine Service Trainee Program, she was assigned as an operations officer to the Domestic Protection Division of the National Clandestine Service. Although it occasionally shares concurrent jurisdiction with the National Resources Division in recruiting foreigners within the United States to serve as human intelligence assets, the primary mandate of the DPD is to collect intelligence in response to time-sensitive threats to the U.S. homeland by utilizing classical methods of deep-cover unilateral espionage operations instead of exclusively relying on foreign agents.
In that capacity, Annie engages in the nitty-gritty of undercover spying in the field, risking her life for the sake of taking a photograph or recording a conversation or copying a computer hard drive. She is a non-official cover officer; meaning she is an operations officer without any official connection to the CIA and also without diplomatic protection if ever caught in an act of espionage. Annie's cover is that she is an acquisitions manager for the Smithsonian Institution. That gives her the cover to travel abroad frequently.
- A version of this character appeared in the 2010-2014 U.S. television series Covert Affairs.