Original Characters are characters that were created by the developers of School of Dragons.
The first to be created was The Headmaster who has been in the game since it was first released. After a long hiatus without original characters, Skulder the Archaeologist was created, though his name was only revealed in Battle for the Edge, which might've been because the developers hadn’t thought of a good name for him yet.
During the same expansion, Harald Forkbeard was created and served as a deuteragonist throughout the game, being both supporting and opposing to the Player. After yet another long hiatus, Nikora Stormheart was created and serves as a major antagonist to the crew.