| Floria Tosca, a famous singer |
| |
Hasmik Papian |
– |
soprano |
| Mario Cavaradossi, a painter |
| |
Hovhannes Ayvazyan |
– |
tenor |
| Baron Scarpia, chief of police |
| |
David Babayants |
– |
baritone |
| Cesare Angelotti, former Consul of the Roman Republic |
| |
Hrant Papian |
– |
bass |
| A sacristan |
| |
Sargis Bazhbeuk-Melikyan |
– |
baritone |
| Spoletta, a police agent |
| |
Berj Karazian |
– |
tenor |
| Sciarrone, another agent |
| |
Hovhannes Nersesyan |
– |
bass |
| A jailer |
| |
Boghos Beazbekyan |
– |
bass |
| A shepherd boy |
| |
Mher Hakobyan |
– |
soprano |
