- Writer:
- Bertram Colgrave
- Writer:
- Hilda Colgrave
- Producer:
- James R. Gregson
- Aidan:
- Alan L Kew
- Seghine, Abbot of Monastery at Iona:
- Thomas Rutherford
- Corman, a monk:
- Norman Murphy
- Chad, a boy:
- Geoffrey Bocca
- Brendan, an Irish monk:
- Alf Simpson
- Garwulf, a thane:
- Charles Wilkinson
- King Oswald:
- Ernest Lyall
- An Almoner:
- Herbert J Scott
- King Oswin:
- Norman Richley
- Monks:
- Eric Andrews
- Monks:
- William Wilson
- Thanes:
- Gillie Fenwick
- Thanes:
- E. Balmer
