Mischievous Heroes (also referred as Heroic Troublemakers) mean well, but sometimes cause trouble and play jokes on the hero or villain and act a little devious. Heroes like these are known to enjoy causing trouble for people (mostly their opponents), and often take pleasure in inconveniencing others.

Mischievous characters antagonize for their own entertainment and are not meant to be taken too seriously; therefore, they cannot count as Pure Good. Even if in very rare cases, some Pure Good can act mischevious, and are still taken seriously (e.g. All Might, Terry Bogard, Jonathan Joestar, Judy Hopps, Soos Ramirez, Wander and Aang) they should go under the Tricksters and/or Thrill-Seekers categories instead.

• However, some mischievous heroes can be truly heroic and admirable if they are at least partly serious and serve as a prominent force against the villains (e.g. Sonic the Hedgehog, Sokka, Ray the Firefly, Jesse, and Alan Grant).