| Role | Voice Part | Classification |
|---|---|---|
| Zenna Briggs | Soprano | L |
| Toby Kramer | Baritone | L |
| Iris Marinus | Soprano | F |
| A 3D film, available only from the publisher, is required for performance of this opera. The three roles classified above are not part of the filmed sequences. | ||
| Minimum Chorus: No chorus |