Quackerjack is a minor antagonist in the Disney animated series, Darkwing Duck, acting mostly as a member of Negaduck's Fearsome Five. An insane jester-based villain, Quackerjack is likely Disney's adaptation of the Joker. Quackerjack is a minor player in the second Disney vs Non Disney Villains War.
Disney vs Non Disney Villains - Part Two[]
After the fall of Cruella de Vil and Madam Medusa early in the war, a power vacuum opens up in the criminal underworld. Quackerjack and the rest of the Five step into place, controlling crime for a period of time. However, the Gangreen Gang rises to take the top spot for itself, having been endowed with superpowers by Hades. In the resulting battle, Quackerjack proves the most ineffective of the Five, ending up frightened by the mere appearance of the now rock-like Big Billy. He is then knocked out, just like the other members of the Five, sans Negaduck.