The Grim Reaper

The Grim Reaper is one of the antagonists of the Gorillaz. He is a member of a group of a gang who wore red hooded jackets (apart from him who wore black) and caused Russel to be haunted by his image for the rest of his life.

Background
Not much is known about him as he hasn't physically appeared in any Gorillaz materials. However, he was involved with the shooting outside a 7-Eleven Store that killed Russel's friends. After the shooting, the spirits of Russel's friends came to reside in his body, the most prominent being Russel's best friend Del.

The Grim Reaper later ripped Del out of Russel's body during the Phase 1 to Phase 2 hiatus.

Trivia

 * The Grim Reaper was seemingly the antagonist of the cancelled Gorillaz movie "Celebrity Harvest".
 * It is possible that the Grim Reaper that killed Russel's friends and the Grim Reaper that was in the Gorillaz movie are two separate entities; as it is implied that the former was simply a gang member, while the later is the actual Grim Reaper.