A historical documentary and tribute to the legacy and influence of MAD Magazine, featuring interviews with MAD celebrity readers, along with MAD artists, writers, and editors—affectionately known as "The Usual Gang of Idiots".
| Actor | Role |
|---|---|
 Patrick WarburtonNarrator (voice) | Narrator (voice) |
 Bryan CranstonSelf | Self |
 Judd ApatowSelf | Self |
 'Weird Al' YankovicSelf | Self |
 Gilbert GottfriedSelf | Self |
 Howie MandelSelf | Self |
 Al JaffeeSelf | Self |
 Sergio AragonésSelf | Self |
 Al FeldsteinSelf | Self |
 Jack DavisSelf | Self |
 Mort DruckerSelf | Self |
 Paul Coker Jr.Self | Self |
 David ZuckerSelf | Self |
 Tim CarvellSelf | Self |
 Quentin TarantinoSelf | Self |
 Howard SternSelf | Self |
 Jimmy KimmelSelf | Self |
 William M. GainesSelf (archive footage) | Self (archive footage) |
 Harvey KurtzmanSelf (archive footage) | Self (archive footage) |
| WWally WoodSelf (archive footage) | Self (archive footage) |