刀劍神域
The following is a list of characters from the light novel, anime and manga series Sword Art Online. Most of the characters are introduced as gamers who play and consequently become trapped in a virtual reality massively multiplayer online role-playing game (VRMMORPG) Sword Art Online. The series chronicles their interactions in multiple online worlds: Sword Art Online (SAO), Alfheim Online (ALO), Gun Gale Online (GGO), and Underworld (UW).