| Name | Character | Episodes |
|---|---|---|
| Sergey Bondarchuk | Cardinal Montanelli | 3 |
| Anastasiya Vertinskaya | Gemma | 3 |
| Ada Rohovtseva | Julia Burton - James's wife | 1 |
| Igor Dmitriev | 1 | |
| Irina Skobtseva | Gladys Burton - Arthur's mother | 1 |
| Name | Character | Episodes |
|---|---|---|
| Sergey Bondarchuk | Cardinal Montanelli | 3 |
| Anastasiya Vertinskaya | Gemma | 3 |
| Ada Rohovtseva | Julia Burton - James's wife | 1 |
| Igor Dmitriev | 1 | |
| Irina Skobtseva | Gladys Burton - Arthur's mother | 1 |