The Millicreep was an assassin droid used by the Umbaran Miltia during the battle of Umbara around 21 BBY. It was about a foot and a half long and simple to transport when deactivated. Unleashed by a squad of Umbaran soldiers when they ambushed the battalion of the 501st Legion, lead by General Skywalker. This droid killed numerous clones with its electrified tail before being severed in two by Skywalker.
- Darkness on Umbara (First appearance)