Armos

Armos is the main enemy of William Missionima, debuting in Rude Dude. He faked being a poor person in order to move into William's house and take advantage of it, until William called the cops on him. He later returned to blackmail William's friend Gary into stealing potions from Teddy in Potion Commotion. He reeappears in All Mine! to steal valuables from William, only to figure out they are fake.

He returns in more episodes such as Tree Falling and Movin' In (Anthony's Song). The last time he was seen was in the latter, where he took control of the newly-built control room in William's house and threatened to blow it up and escape using the escape pod.