An iconic character or signature character is a character who is depicted in the art and sometimes the text of rulebooks and supplements as an example of a particular character type (e.g. class in traditional role-playing games). Such characters may appear in non-game fiction relating to the setting of the role-playing game in which they appear. Because a lot of artwork may include them, they might be recognisable in the game's marketing.
Iconic characters may be important non-player characters in the setting of the game (as in Vampire: The Masquerade), or could alternatively be potential pre-generated player characters for new players (as in Pathfinder).
Use of iconic characters was common in the 2000s, including in Dungeons & Dragons 3rd edition, Pathfinder, and World of Darkness games like Vampire: The Masquerade. In World of Darkness games in particular, signature characters were often used for advancing the metaplot of the setting.