 One character was removed from the final version of the game. Yet  the character names are left in the book, and in the games credits,  named Darkel. There is nothing left of him in the game except for  Darkels character skin, who appears to be a hobo / homeless person.  Two popular ideas about Darkels removal are: 1) He gave terrorist  like missions, and were removed due to the 9/11 attacks. 2) He gave  you the rampages, but the company decided the traditional skull  icons would be better. Darkel was voiced by Bill Fiore.