| Name | Character | Episodes |
|---|---|---|
| Christoph Waltz | Dr. Hans-Joachim Dorfmann | 4 |
| Ron Donachie | Hatted Man | 4 |
| Judy Parfitt | Hilda | 4 |
| Jim Carter | Personip | 4 |
| Ian Richardson | Michael Spearpoint | 4 |
| Amanda Mealing | Delise | 4 |
| Alexei Sayle | Vlad Milcic | 4 |
| Stephen Greif | Rudolph | 4 |
| Joseph Mydell | Duke | 4 |
| Jacques Sereys | Villeneuve | 4 |