In the false memory, Scharn helped Kovin harvest Seven's nanoprobes. Seven believed that Scharn attached her to a bio-pump that extracted her nanoprobes. Kovin was proven innocent when Tuvok discovered that weapons testing had triggered memories that Seven experienced as a Borg. (VOY: "Retrospect") Scharn was played by Michelle Agnew. Scharn was named by Bryan Fuller. He based the name on the fact his mother had the maiden name "Scharnhorst". (Information from Larry Nemecek) It is unknown if Scharn actually existed or was a construct of Seven's imagination.