In Buenos Aires, 17-year-old Bennie seeks out his estranged brother Tetro, a once-promising writer haunted by their family’s past. As Bennie uncovers Tetro’s hidden manuscript, old secrets and rivalries resurface, forcing both men to confront the truth about their father and the tangled legacy that tore their family apart.
| Actor | Role |
|---|---|
 Vincent GalloAngelo 'Tetro' Tetrocini | Angelo 'Tetro' Tetrocini |
 Alden EhrenreichBennie Tetrocini | Bennie Tetrocini |
 Maribel VerdúMiranda | Miranda |
 Klaus Maria BrandauerCarlo | Carlo |
 Silvia PérezSilvana | Silvana |
 Rodrigo de la SernaJosé | José |
 Érica RivasAna | Ana |
 Mike AmigorenaAbelardo | Abelardo |
| LLucas Di ConzaYoung Tetro | Young Tetro |
| AAdriana MastrángeloÁngela | Ángela |
 Leticia BrédiceJosefina | Josefina |
 Sofía Gala CastiglioneMaría Luisa | María Luisa |
 Jean-François CasanovasEnrique | Enrique |
 Carmen MauraAlone | Alone |
 Francesca De SapioAmalia | Amalia |
| XXimena Maria IaconoNaomi | Naomi |
 Susana GiménezSusana Giménez | Susana Giménez |
 Pochi DucasseLili | Lili |
| NNora Elisabeth RoblesNaomi - Dancer | Naomi - Dancer |
| PPedro Arturo CalveyraCarlo - Dancer | Carlo - Dancer |
| MMariela Noemi MagentaÁngela - Dancer | Ángela - Dancer |
| MMarcelo Fabio CarteTetro - Dancer | Tetro - Dancer |
 Guadalupe Docampo(uncredited) | (uncredited) |
| JJuliana Giambroni(uncredited) | (uncredited) |