| Walter Pidgeon | Mr. Gruffydd | |
| Anna Lee | Bronwyn | |
| Roddy McDowall | Huw | |
| Sara Allgood | Mrs. Morgan | |
| Patric Knowles | Ivor | |
| Morton Lowry | Mr. Jonas |
| Maureen O'Hara | Angharad | |
| Donald Crisp | Mr. Morgan | |
| John Loder | Ianto | |
| Barry Fitzgerald | Cyfartha | |
| Welsh Singers | Themselves | |
| Arthur Shields | Mr. Parry |