| Name | Character | Episodes |
|---|---|---|
| Pierce Brosnan | Rory O'Manion | 3 |
| Kate Mulgrew | Rachel Clement | 3 |
| Linda Purl | Deirdre O'Manion | 3 |
| T. P. McKenna | Harry Clement | 3 |
| Nicholas Hammond | Padraic O'Manion / Sean O'Manion | 3 |
| Anthony Quayle | Lord Montgomery | 3 |
| Barbara Parkins | Charlotte Kent | 3 |
| James Greene | Shane O'Manion | 3 |
| Steve Forrest | James Kent | 3 |
| Simon MacCorkindale | David Clement | 3 |
| Kathleen Beller | Maureen O'Brian | 3 |
| David Soul | Caleb Staunton | 3 |
| Harry Towb | Michael O'Connor | 3 |
| Peter Gilmore | Jim O'Brian | 3 |