Joker is probably the biggest threat on the Society aside with Maleficient and Azula, beside uncanny laughter, he's unpredictable, cunning and unbelievably resourceful to anykind of assault taunting or torturing the basic mentality of the Society, even also his own group when thing went south
Appearence in Ultima[]
The Joker is under close surveilence by several members of the Orgs, due to his habit of gruesomely maiming, or killing his own allies, and spraying them with his Joker Gas. Still, the Org allows him to visit many dimensions, new worlds for him to spread chaos and death/
The Joker has also made enemies with heroes not from the DC world, including Spider-man, as well as the Ultimawielders.