Jack Fool is a servant of Luther Black and a villain who appears in the Demonflame Adventure Pack for Champions Online.

It is suggested that, in life, Jack Fool was a hero, but something changed within him; now, Jack Fool is a monster in every sense of the word and follows the will of the would-be-god Luther Black.

Jack Fool appears weak at first, but can be deceptively dangerous- however, blocking his attacks migrates a lot for his damage and thus makes facing him a lot less daunting for experienced players.