The series centers on different protagonists who attempt to rise through the ranks of the criminal underworld, although their motives for doing so vary in each title. The antagonists are commonly characters who have betrayed the protagonist or their organisation, or characters who have the most impact impeding the protagonist's progress. Several film and music veterans have voiced characters in the games, including Ray Liotta, Dennis Hopper, Samuel L. Jackson, William Fichtner, James Woods, Debbie Harry, Axl Rose and Peter Fonda.[3]