| Leonide |
| A nun |
| Arbaux |
| A priest |
| Mr. |
Astruc | Celebrity agent |
| Pierre |
Bouchardon | Commander of the firing squad |
| Helene |
Brion | Mata Hari's cellmate |
| Edouard |
Clunet | Mata Hari's lawyer |
| Alfred |
Dreyfus | Jewish-French army officer |
| Gustave |
Eiffel | Engineer; designer of the Eiffel Tower |
| Archduke |
Ferdinand | Heir to the Austro-Hungarian throne |
| Mr. |
Freud | Mata Hari's acquaintance |
| Paul |
Guimard | French writer |
| Monsieur |
Guimet | Supported Mata Hari's artistic career |
| Madame |
Guimet | Monsieur Guimet's wife |
| Captain |
Hoffmann | Officer in charge of Mata Hari's case |
| Alfred |
Kiepert | Wealthy German landowner; cavalry lieutenant |
| Madame |
Kireyevsky | Mata Hari's acquaintance |
| Karl |
Kramer | Mata Hari's acquaintance |
| Georges |
Ladoux | Head of counterespionage |
| Rudolf |
Macleod | Dutch army officer |
| Jules |
Massenet | Composer; Mata Hari's lover |
| Gaston |
Menier | Art collector and photographer |
| Adolphe |
Messimy | Former minister of war; deputy in the National Assembly |
| Amedeo |
Modigliani | Italian painter and sculptor |
| Andre |
Mornet | Prosecutor |
| Franz |
Olav | Mata Hari's acquaintance |
| Pablo |
Picasso | Influential Spanish artist |
| Giacomo |
Puccini | Italian composer |
| Baron |
Rothschild | Symbol of wealth, power, and influence |
| Arthur |
Rubinstein | Polish-American pianist |
| Jules |
Soquet | Prison doctor |
| Maurice |
Van Staen | Hairdresser |
| Oscar |
Wilde | Irish playwright and poet |
| Margaretha |
Zelle | Protagonist; exotic dancer and accused spy. Aka: Mata Hari |
| Adam |
Zelle | Margaretha's father |
| Emile |
Zola | French novelist and journalist |
| Andreas |
| Army officer in Indonesia |
| Antje |
| Margaretha's mother |
| Fernande |
| Picasso's girlfriend |
| Inanna |
| Symbolic figure of feminine intelligence and spirit |
| Laurence |
| A nun (Sister Laurence) |
| Nijinsky |
| Polish-Russian ballet dancer |
| Pauline |
| Mata Hari's acquaintance (Sister Pauline) |
| Petain |
| French war hero; later Marshal of France |
| Shiva |
| Hindu god of creation and destruction |
| Thea |
| Member of the intelligence group Lamplight |