Generation Iron - examines the professional sport of bodybuilding today and gives the audience front row access to the lives of the top 7 bodybuilders in the sport as they train to compete in the world's most premiere bodybuilding stage - Mr. Olympia.
| Actor | Role |
|---|---|
 Mickey RourkeNarrator (voice) | Narrator (voice) |
 Michael Jai WhiteSelf | Self |
 Lou FerrignoSelf | Self |
| MMike KatzJudge | Judge |
 Arnold SchwarzeneggerSelf | Self |
 Phil HeathSelf | Self |
 Kai GreeneSelf | Self |
 Busta RhymesSelf | Self |
| VVictor Martinezself | self |