Louis Loiselle was born in Paris, France on June 6, 1968. His father is a former commercial pilot while his mother is a clerk at a local department store in Avignon. Loiselle was a former member of the French Parachute Division and was detailed to DGSE. He later became part of action group Service 7 and was involved in tactical espionage and counter-espionage throughout Europe. In 1985, Loiselle began training DGSE recruits. In 1996, he married his wife, Elaine.
Loiselle has a sense of humor, and fosters an air of camaraderie wherever he goes. Though he takes his job very seriously, he manages to see the bright side of things, and this keeps morale high. Loiselle is 35, but he is as concerned about his appearance as a man half his age, and cannot pass a mirror without executing a quick appraisal of his good looks. The fact that he is slowly losing hair drives him mad, and he has become the butt of many Rogaine jokes. He's devoted to his wife, but flirts outrageously with every woman he sees, much to the amusement of the other members of Team Rainbow. During his free time, he reads about history and takes his wife out dancing.
On assignments, Loiselle is a utility player, and doesn't get shaken easily. He is a marksman with pistols and rifles, although he is experienced in all forms of counter-terrorism. He spends most of his free time reading and spending time with his wife.