| Characters in order of their appearance |
|---|
| Pedro Ibanez | - | agent of the Spanish Communist Government |
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| Magdalena | - | Señor Cabaño’s housekeeper |
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| Jane Hopton | - | Señor Cabaño’s private secretary |
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| Esther Conolly | - | a gypsy – wife of Daniel Conolly |
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| Señor Miguel Cabaño | - | a Spanish businessman |
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| Williams | - | his manservant |
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| Sir Harold Vincent | - | junior partner of Goodbody and Vincent, an armaments firm |
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| Daniel Conolly | - | proprietor of Conolly’s Fun Fair |
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| Jonah Jordon | - | skipper of a tramp steamer |
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| Tony Kingdon | - | of the C.I.D. |
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| Major Luis Batista | - | agent of the Spanish insurgent forces |
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| Inspector Jenkins | - | of the Pembrokeshire County Constabulary |
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| Concha | - | grandmother to José; an aged woman, reputed a witch |
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| José | - | the keeper of a poor Spanish inn |
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| Carlos, Ramon | - | Spaniards, supporting the insurgents |
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