The WED 15 Septoid Treadwell, also known simply as the WED droid, was a model of WED Treadwell repair droid. The Galactic Empire used those droids to repair their turrets and structures on the battlefield because they were able to keep working at full efficiency until they were destroyed.
- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars: A New Hope (paperback novel)
- Star Wars: Force Arena