Lightbringer

Origin
Carter Granholme is a resident of Pharos City, a once prosperous metropolis that has become overrun with crime. Having an unexplained power to control light, he nonetheless stands by, trying to live up to his pacificst parents' legacy before he can take no more and finally decides to clean up his city, taking up the mantle of Lightbringer, becoming the first superhero for his world. Through his adventures, he faces many villains and gains his own ally in the superhero Osprey.

Villains

 * Darkbringer
 * Gentleman
 * Smiling Man
 * White Death

Public Domain Appearances

 * Lightbringer

Appearances that are Not Public Domain

 * Mindmistress
 * Crossoverlord
 * AntiBunny

Note
On September 30th, 2013, Linkara posted that he was releasing Lightbringer into the public domain. He specifically mentions in said post that he can only speak for his own work on the comic, and none of the other artists have publically expressed what the status is of their art. However, it is certain that storylines that took place in other webcomics are not public domain, meaning his appearance in the Crossover Wars (at least the Mindmistress portion, maybe even the bit in his own comic), AntiBunny's Project Overcross and the entirety of the Crossoverlord are still copyright protected.