The Jack Pack was the collective name given to Jack, Patrick, Lauren and Sarina Douglas.
The name of the group came from several Deep Space 9 colleagues of Julian Bashir. The Jack Pack later began to work for Starfleet Intelligence. (DS9 episodes: "Statistical Probabilities", "Chrysalis", ST - Typhon Pact novel: Zero Sum Game, ST - The Fall novel: A Ceremony of Losses)