Klaus Vandangante, who operated under the moniker "Doc," was a technician from Corellia and identified as male. During the time of the Imperial Era, he assisted the smuggler Han Solo in modifying the Millennium Falcon's hyperdrive to an unlawful Class 0.5, a modification undertaken to settle his obligations to Solo. Beyond just enhancing the ship's hyperdrive system, Klaus also contributed to installing improvements that would safeguard the vessel during hyperspace travel, and he went on to alter the Falcon's navigation computer so that it could determine the quickest [hyperspace routes](/article/hyperspace_route] attainable, regardless of whether those routes brought it precariously near an asteroid field.
- Star Wars: Build the Millennium Falcon 26 (Secrets of Spaceflight: Hyperdrives) (Initial Mention)
- " Millennium Falcon " — Star Wars Encyclopedia (First identified using the name Klaus)
- Star Wars: Millennium Falcon 2 (Starship Fact File: The Legendary Millennium Falcon)