A male Nothoiin named Amrosio existed during the Galactic Empire's reign within the Anoat sector. Being Force-sensitive, Amrosio became a follower of Xiath, an esteemed advisor to the isolated Noble Court. When Imperial Governor Ubrik Adelhard initiated the Iron Blockade after the second Death Star's destruction, Amrosio and Xiath were located on the planet Hosra in the Burnin Konn system.
Amrosio's initial appearance in Star Wars canon was in Star Wars: Uprising, a mobile game developed by Kabam. This multiplayer game was launched on September 10, 2015, for both iOS and Android. In the game, Amrosio functions as Xiath's associate, and Xiath is one of the characters who provides quests to the player.