Born in Birmingham, England. Father was a waiter, mother a cleaning woman. Two brothers, one younger, one older. Joined Birmingham police force as a patrol officer in 1987. Promoted to detective in 1991. Spent the next five years working a variety of undercover operations in the Special Branch. In collaboration with the British Security Service (MI5) coordinated a series of raids in the fall of 1996 that broke the back of the "Field of Gold" terrorist underground in the British Isles. Recruited by MI5 as an agent in 1997, he left his position with the Birmingham force. Assigned to their counter-terrorism branch ("T" Branch) and working out of London, he has planned and executed over two dozen covert actions in Great Britain and British territories. Unmarried.
Despite his youthful appearance, Sweeney is a master of covert operations. He has a particular knack for blending into the background that served him well during his years working undercover on the streets of Birmingham. He also is an excellent burglar and, despite his large build, can move quite quickly and quietly if he needs to. He is a good actor and can maintain his composure even under the most stressful situations. Professionally he is soft-spoken and earnest. He prefers consensus to confrontation.
