Since it's done in that oral history format (I know there's a better technical term), you have all kinds of actors voicing the characters for the different segments.
"An all-star cast including Alan Alda, Mark Hamill, Jürgen Prochnow, Henry Rollins, John Turturro, Rob and Carl Reiner, and many others deliver their parts with such fervor and intensity that listeners cannot help but empathize with these characters. Max Brooks acts as the interviewer, providing an inquisitive but stagnant demeanor."
