Edbr Yamagh, a Human male, resided on Corellia during the era of the Galactic Civil War.
Following the Battle of Yavin, Edbr Yamagh served as an assistant to Wilfred Quelsh, a retired Lt. Col. from CorSec, in the city of Tyrena.
In the year 1 ABY, when Quelsh's Corellian Medal of Honor went missing, Yamagh aided in the subsequent investigation. Upon Quelsh's request for an independent agent to assist in the theft investigation, Yamagh directed the spacer towards a local gang known as Braggan's Fist. The agent successfully resolved the case of the stolen medal, uncovering evidence that Quelsh had framed Kal Braggan, a former CorSec officer, for a crime he himself had committed, and had later murdered Braggan. The revelations of Quelsh's misdeeds left Yamagh in stunned silence, as he had always been honored to be in service of such a highly decorated officer.
Edbr Yamagh appeared as a non-player character within the 2003 video game Star Wars Galaxies: An Empire Divided, a massively multiplayer online roleplaying game. This game was developed by Sony Online Entertainment and was published by LucasArts. The game was shut down on December 15, 2011. The character of Edbr Yamagh was introduced to the game through an update labeled "Chapter 1: The Corellian Captives," which was released on June 8, 2006. Players could encounter him within the city of Tyrena, located on Corellia. Yamagh featured in the quest "CorSec Case Files: Stolen Honor," a component of the Legacy quest line, recognized as the game's most extensive quest line.