Chronicles Of Riddick: Escape From Butcher Bay Easter Egg - Tool Band Members

In the "Showers" area, there is a room with 6 doors with name tags on them. 4 of them have the names "Carey", "Chancelor", "Keenan" and "Jones". These are the last names of all 4 members of the band Tool (Danny Carey, Justin Chancelor, Maynard James Keenan and Adam Jones).