Lieutenant Helga Katrina Sinclair is the secondary antagonist of Disney's 2001 animated feature film Atlantis: The Lost Empire. She serves Commander Rourke's second-in-command of the expedition to find the lost continent of Atlantis and additionally serves as the personal assistant to Preston Whitmore. The oldest of six children (and the only girl), Miss Sinclair grew up fighting with her fists as well as her wits. Born in Frankfurt, Germany as the daughter of career officer U.S. Army…
