Junior was the name given to a Borg drone by Magnus Hansen while observing on a Borg cube in the 2350s.

During one observation, Magnus noted that Junior had taken "a real beating when a plasma conduit blew out." Magnus observed Junior's return to his alcove to regenerate. Moments later Bill and Needle Fingers, two drones from different subunits, arrived to deactivate Junior before dismantling him and salvaging his components. (VOY: "Dark Frontier")

'Junior' was played by an unknown actor.