Démophon is a French-language opera by the composer Johann Christoph Vogel, first performed at the Académie Royale de Musique (the Paris Opera) on 15 September 1789. The libretto is by Philippe Desriaux. The second and last of Vogel's operas to be staged, it was premiered after the composer's death at the age of 32 the previous year.
| Cast | Voice type | Premiere |
|---|---|---|
| Démophon, King of Thrace | basse-taille (bass-baritone) | Martin-Joseph Adrien |
| Timante, son of Démophon, secretly married to Dircée | tenor | Étienne Lainez |
| Dircée | soprano | Marie-Wilhelmine de Roussellois |
| Narbal | tenor/baritone | François Lays |
| Adraste | basse-taille (bass-baritone) | Châteaufort |
| Un coryphée | basse-taille | Pierre-Charles Le Roux (the younger)[1] |
| Le grand prêtre (the high priest) | basse-taille (bass-baritone) | Dufresne |
| Diane (the goddess Diana) | soprano | Burette |
| Une coryphée | soprano | Mullot (or Mulot) |
| Chorus: Priests, warriors and people of Thrace | ||