Letter Beyond the Walls reconstructs the trajectory of HIV and AIDS with a focus on Brazil, through interviews with doctors, activists, patients and other actors, in addition to extensive archival material. From the initial panic to awareness campaigns, passing through the stigma imposed on people living with HIV, the documentary shows how society faced this epidemic in its deadliest phase over more than two decades. With this historical approach as its base, the film looks at the way HIV is viewed in today's society, revealing a picture of persistent misinformation and prejudice, which especially affects Brazil’s most historically vulnerable populations.
| Actor | Role |
|---|---|
| VVeriano Terto JrSelf | Self |
| JJacqueline Rocha CôrtesSelf | Self |
| MMárcio Roberto MacedoSelf | Self |
| VValéria PetriSelf | Self |
| RRicardo TapajósSelf | Self |
| LLuiz MottSelf | Self |
 Celso CuriSelf | Self |
 Jean-Claude BernardetSelf | Self |
 João Silvério TrevisanSelf | Self |
| RRicardo VeronesiSelf (archive footage) | Self (archive footage) |
| PPaulo Cesar BonfimSelf (archive footage) | Self (archive footage) |
| AArtur KalichmanSelf | Self |
| PPaulo Roberto TeixeiraSelf | Self |
| RRosana Del BiancoSelf | Self |
| AArtur TimermanSelf | Self |
| AAndréia di MaioSelf (archive footage) | Self (archive footage) |
| BBrenda LeeSelf (archive footage) | Self (archive footage) |
| ÁÁurea AbbadeSelf | Self |
| RRichard ParkerSelf | Self |
 BetinhoSelf (archive footage) | Self (archive footage) |
| AAlberto ChebaboSelf | Self |
| BBeto de JesusSelf | Self |
 CazuzaVoice | Voice |
 Lucinha AraújoSelf | Self |
 Marina PersonSelf | Self |
 Dráuzio VarellaSelf | Self |
| TTeresa Cristina de BarrosSelf (archive footage) | Self (archive footage) |
 Plínio MarcosSelf (archive footage) | Self (archive footage) |
| NNair BritoSelf | Self |
| SSilvia AlmeidaSelf | Self |