- Writer:
- Jean Morris
- Music and songs composed by:
- Elizabeth Poston
- Music and songs conducted by:
- Douglas Robinson
- Percussionist:
- James Blades
- Psaltery:
- Joan Rimmer
- Treble recorder:
- Stanley Taylor
- Oboist:
- Edward Selwyn
- Cellist:
- Lilly Phillips
- Flautist:
- Geoffrey Gilbert
- Production:
- Mary Hope Allen
- Jacques de Vitry, Bishop of Acre:
- Carleton Hobbs
- The Prior:
- Eric Anderson
- Thomas, a novice:
- Nigel Stock
- Aubery, a boy:
- Sulwen Morgan
- Aubery, a man:
- Geoffrey Matthews
- James:
- Leonard White
- First merchant:
- Peter Claughton
- Second merchant:
- Raf de la Torre
- First peasant:
- David March
- First Mongol:
- Ralph Truman
- Second Mongol:
- Frederick Treves
- Second peasant:
- Raf de la Torre
- Third peasant:
- Will Leighton
- Fourth peasant:
- Peter Claughton
- First girl:
- Kathleen Helme
- Second girl:
- Hilda Schroder
- Third girl:
- Sheila Grant
- The Hermit:
- Will Leighton
- The Abbot:
- John Ruddock
- A boy:
- Douglas Hankin
- The King:
- Ralph Truman
