Isabel Ferguson has always had an ingenious knack for inventing things. Due to the fact that her father was head of the British Armory Department at M.I.6., she specializes in manufacturing custom-designed, state-of-the-art ordnance and other high-tech gadgets. Determined to maintain a low profile, she works on a strictly freelance basis, which allows her to be extremely choosy about her clientele. Maverick once saved her father's life and as thanks, she provides him equipment at a significant discount. Isabel has a baby daughter named Madeline, of whom she has primary custody.