The clandestine congress of the National Union of Students, held in October 1968, resulted in the collective arrest and registration of 700 students who opposed the dictatorship.
| Actor | Role |
|---|---|
| CCarlos VainerSelf | Self |
 Lúcia MuratSelf | Self |
| FFrei Oswaldo Rezende O.P.Self | Self |
 Fausto NiloSelf | Self |
 Ana Bursztyn-MirandaSelf | Self |
| JJosé GradelSelf | Self |
| MMaria Helena MaltaSelf | Self |
| NNadia Teixeira PeralvaSelf (archive footage) | Self (archive footage) |
| VVladimir PalmeiraSelf | Self |
| MMarcos MedeirosSelf (archive footage) | Self (archive footage) |
| EElinor BritoSelf (archive footage) | Self (archive footage) |
| FFranklin MartinsSelf | Self |
| RRubem GriloSelf | Self |
| JJosé DirceuSelf | Self |
 Paulo Emílio Sales GomesSelf (archive footage) | Self (archive footage) |
| CCésar MaiaSelf | Self |
| PPaulo de Tarso VenceslauSelf | Self |
| NNewton LeãoSelf | Self |
| TTeodoro Buarque de HollandaSelf | Self |
| YYves LesbaupinSelf | Self |
| JJean Marc von der WeidSelf | Self |
 Eduardo TornaghiNarrator | Narrator |