- As The Old Republic introduces thousands of new elements to the Star Wars Expanded Universe, this article refrains from using "(First appearance)"; instead, the following symbols are used to indicate whether an element originated in a source other than the base game.
- A † signifies a character, location, event, etc. originated in another source.
strikethrough signifies a character that was present in the game after release but was later removed from the game.
- This section lists the appearances featured in the game from version 1.0 up to the launch of Rise of the Hutt Cartel. For appearances featured in the expansions, please go to their respective pages:
The following are the in-universe representations of the eight class characters: