The Commander and Destro are imprisoned in the USS Flagg, while Zartan appears at the end impersonating the U.S. President.
The two characters are Brigadier General Lawrence J. Flagg (the USS Flagg aircraft carrier was named after him) and Brigadier General James L. Flagg III, his son.
USS Monitor | USS Constitution | USS ''Constitution'' | USS Defiant | USS ''Monitor'' | USS Enterprise (NCC-1701) | USS Cole bombing | James Montgomery Flagg | USS New Ironsides | USS Merrimack | USS Enterprise (CV-6) | USS ''Enterprise'' | Fannie Flagg | USS ''Somers'' | USS Quincy (CA-71) | USS Quincy | USS Pueblo | USS ''Nautilus'' | USS ''Merrimac'' | USS ''Lexington'' | USS ''Kearsarge'' | USS Enterprise (NCC-1701-D) | USS Enterprise (NCC-1701-B) | USS Enterprise | USS ''Defiant'' | USS Brooklyn | Edith Flagg | USS Voyager | USS ''Vincennes'' | USS ''Truxtun'' |