Usher was a guide to the Player Tsviet during the online mode of Dirge of Cerberus -Final Fantasy VII-. The mysterious SOLDIER with the Deepground symbol upon his belt feeds information about Deepground, the Tsviets, the Restrictors, and previous activities performed in Deepground — and yet poses a question as to who the Restrictor was under the mask, believing him to be another Tsviet. Aside, Usher knows a great deal about the Tsviets that have colors assigned to them, including the experiments that led to the birth of Nero the Sable — claiming the project to be similar to that of the Jenova Project.
Unknown to the Player, he was a virtual image created by Shelke the Transparent's SND — designed to influence the Player to face the Restrictor, in order for Weiss the Immaculate to break free from the brain chip which restricts any possible attack on the Restrictor, and kill him. The image of Usher fades away as Shelke disconnects the SND connected from the Player, and the Player presumably dies while lying on the floor of Mako Reactor 0 from a fatal attack by the leading Restrictor.