Umbaran mobile heavy cannon (UMHC) was a model of walker used by Umbarans during the Clone Wars. Later, both the Imperial Army and Alliance to Restore the Republic used them during the Galactic Civil War, with the Alliance operating stolen Imperial machines and providing them to Saponza's Gang.
MHCs were heavily armored and had an articulated electromagnetic plasma cannon mounted on top of its dome-like body. The Imperial Military used a remodeled variant known as the Cold-weather Mobile Heavy Cannon. This prototype model was specialized in sub-zero temperatures.
- Star Wars: The Clone Wars – "The General" (First appearance)
- Star Wars: The Clone Wars – "Plan of Dissent" (Appears in flashback(s))
- Star Wars: Commander
- (First identified as Umbaran mobile heavy cannon)