John Treleaven
- Luogo di nascita:
- Cornwall, England, UK:
 | Secrets in the Wilderness (2021) Tom O'Brien |
 | Son of Cornwall (2021) himself |
 | Wagner - Siegfried (2006) Siegfried |
 | Lohengrin (2006) Lohengrin |
 | Wagner - Götterdämmerung (2005) Siegfried |
 | Rusalka (1986) The Prince |