Undead Trooper

"Death Trooper" was a nickname used to refer to stormtroopers of the Galactic Empire who had been infected by the viral agent known as the Sickness at some point between the Battle of Yavin and the Battle of Hoth. After dying a painful death, those troopers had been turned into mindless, walking corpses with cannibalistic urges. Studies revealed that, because of the infection, Death troopers were slower than living humans, but had an improved ability to sustain damage. The virus allowed the death troopers to communicate telepathically and learn. Acting as one, the Death Troopers were willing to organize themselves into a deadly swarm and launch coordinated strikes on Imperial forces and Rebels alike. They even managed to reprogram and hack turret controls and security measures at fallen sectors to their advantage. This gave them the ability to fortify overrun bases against possible counter strikes, using blaster cannons, walls, and shield generators to fight off hostile contacts. This level of skill and coordination earned them the nickname "Army of the Dead".

Behind the scenes
"Death Troopers" first appeared in the Star Wars Legends novel of the same name as undead stormtroopers infested by a Sith plague dating back to the days of the Old Republic. They were later canonized in the mobile game Star Wars: Commander.

Appearances

 * Star Wars: Commander