Ceasar
this was the name given to one of the Watcher Beasts on Patch-4. The name was given to the worm by Serja Kesselrook and his band of scavengers. Luke Skywalker tried to kill the beast by dumping tons of debris on it, but the worm survived. Luke was forced to activate Orion Ferret's sonic pacifier device in order to stop Ceasar.