| | | | Part 1 |
| 1 | Emma | Hasselbacher | Wormold's friend and doctor. |
| | Jim | Wormold | A vacuum cleaner salesman. Spy. Protagonist. Aka: Senor Vomell. |
| | Milly | Wormold | Mr. Wormold's daughter. Aka: Seraphina. |
| | Father | Mendez | The Priest. |
| | Lopez | | Mr. Wormold's assistant. |
| 2 | Thomas Earl | Parkman | The boy that Milly set on fire. |
| | Reverend | Mother | The school's headmistress. |
| | Senor | Perez | Milly's acquaintance. |
| | Captain | Segura | The chief of police in Vedado. The man Milly falls in love with. Aka: The Red Vulture. |
| 3 | Mrs. | Ashworth | The bank teller. |
| | Mr. | Humpelnicker | One of Wormold's customers. |
| | Mary | | Mr. Wormold's ex-wife. |
| | Hawthorne | | A British Secret Intelligence. |
| | Lord | Rutherford | The New Zealand physicist. |
| | Cetewayo | | The King of Zulus. |
| 4 | Lord | Calvert | One of Dr. Hasselbacher's patients. |
| | Miss | Jenkinson | The Chief's acquaintance. |
| | Angelica | | One of Miss Jenkinson's workers. |
| | Beatrice | Severn | Mr. Wormold's half-French secretary. Also an encoder. |
| | | | Part 2 |
| 1 | Charles | Lamb | An essayist. |
| | James | Frazer | The Scottish anthropologist. |
| | Luis | Sanchez | A professor. |
| | Cifuentes | | An engineer. |
| | Vincent | Parkman | A political figure. Thomas's father. |
| | Henry | Leadbetter | A civilian researcher. |
| 2 | Mark | | Mr. Wormold's nephew. |
| | Alice | | Milly's aunt. |
| | Edward | | Milly's uncle. |
| | | | Part 3 |
| 1 | Hans | | A young pilot. |
| 2 | Teresa | | A night club dancer. |
| | Marie | | A French girl at the convent. |
| | Rudy | | Mr. Wormold's assistant accountant. |
| 3 | Chief | Engineer | The chief engineer of the Juan Belmonte. |
| | Peter | | Beatrice's husband. |
| | | | Part 4 |
| 1 | Soy | Teresa | Teresa's sister. |
| | Maria | | One of Professor's lovers. |
| | | | Part 5 |
| 1 | Miguel | | The beggar. |
| | Henry | | One of the spy agents. |
| 2 | Dr. | Braun | The European Traders Association President. |
| | Carter | | One of the nucleaners. |
| 3 | Mr. | MacDougall | The man that Mr. Wormold met. |
| | Mr. | Svenson | The Scottish man that Mr. Wormold met. |
