- Abel Nightroad, AX Agent "Krusnik".
- Agamemnon, Count of Mycenae.
- Agnes, Hugue's distant cousin.
- Ahmed, Shahrazad al-Rahman's retainer.
- Alessandro XVIII, Pope of the Vatican.
- Alexander Scott, a priest from Londinium and a turned vampire. Caterina sends Abel to arrest him for seven counts of murder and blood extortion, because she doesn't want it known publicly that a priest had 'changed.' Scott was just preparing his "supper" - Sister Angelina - when Abel engages him. 
- Alfred, Duke of Mainz.
- Alfonso d'Este, Archbishop of Cologne.
- Andreas, an Inquisitor.
- Angelina, a pale nun who was about to be eaten by Alexander Scott before Abel saves her.
- Angelina "Shark" Jolie, a Mermaid Methuselah.
- Anna Farmer, a prostitute and former handmaiden of Edward White. Was murdererd by Jack the Ripper.
- Antonio de Borgia y Borgia, Prince of Hispania and Cardinal.
- Arnold di Cambio, Captain in the Vatican air force.
- Astharoshe Asran, Duchess of Odessa and Marquise of Kiev.
- Augusta Vladika, Empress of the New Human Empire.
- Angelica, an unawakened Methuselah child who lives in the Ghetto under Albion.
- Ömer Kala, a Methuselah from Trinity Blood: Apocrypha, who Astharoshe finds in a store with many dead humans. She claims to have been shot with a silver bullet by Lydia Haskill, a methuselah serial killer.
- Balthasar von Neumann, Rosenkreuz Orden member "Basilisk"
- Bartholomaios, a Killing Doll
- Baybars, Baron of Khartoum
- Borghese, Major General of the Constantinus
- Bridget II, Queen of Albion
- Cain Knightlord
- Caterina Sforza, Duchess of Milan
- Chadarli Kara Haril, Astharoshe Asran's steward
- Chapek, Archbishop
- Cherubim, a homunculus
- Clement, a reporter
- Dietrich von Lohengrin, Rosenkreuz Orden member "Puppeteer"
- Edward White, an Albion knight.
- Emanuele d'Annunzio, Archbishop of Istvàn.
- Endre Kourza, Count of Zagreb.
- Elissa Dar Shrite, ancient Queen of Carthage. Possibly translated as "Elizza dar Chrait".
- Elise/ Eris Wasmayer, a young witch.
- Esther Blanchett
- Etoile Duchaussoy
- Ettore Berlusconi, Special Forces Officer of the Vatican
- Eulis Ruutel, Count of Estonia.
- Fabio, a corporal in the Vatican Army
- Fana, Leon's daughter.
- Ferguson, an officer from the First Department of Investigation of the Scotland Yard.
- Feron Lin, Marquise of Damascus
- Francesco di Medici, Duke of Florence
- Friedrich, a priest of the New Vatican
- Gergey Radcón, Colonel of the István army
- Gerhard Jodler, Rosenkreuz Orden member
- Guderian, Rosenkreuz Orden member "Reißzahn"
- Guzino, crewman of the Nereiades
- Gyula Kádár, Marquis of Hungary
- Gepetto Garibaldi, Vatican scientist Professor
- Georges Rodenbach, a character with dark hair and glasses.
- Hairedin, crewman of the Nereiades
- Hans Memling, Earl of Antewerp.
- Heidrich, a priest of the New Vatican
- Helga von Vogelweide, Rosenkreuz Orden member "Eishexe"
- Howard, Lieutenant in the Albion Navy
- Hugue de Watteau, AX Agent "Sword Dancer"
- Humbert Barbarigo, Major General of the Justinians
- Hussein, crewman of the Nereiades
- Ibrahim, navigator of the Nereiades
- Ion Fortuna, Count of Memphis
- Isaak Fernand von Kämpfer, Rosenkreuz Orden member "Panzer Magier"
- Jack Ironside, Seargant in the Albion army
- Jane Judith Jocelyn, Duchess of Erin
- Jessica Lang, stewardess of the Tristan
- Jacob A, and Inquisitor.
- Jacob B, and Inquisitor.
- Johanna, an Inquisitor.
- Judith, an Inquisitor.
- Kaspar von Neumann, Rosenkreuz Orden "Hundert Gesichter"
- Kate Scott, AX Agent "Iron Maiden"
- Kaya Syokka, AX Agent "Gypsy Queen"
- Kung Fu, a vampire
- Laura Vitez, Bishop of St. Mathias Church
- Leon Garcia de Asturias, AX Agent "Dandelion"
- Lilith Sahl
- Loretta, a nun
- Ludwig II, King of Germanicus
- Lipshe, from Bohemia.
- Lydia Haskill, Countess of Rijeka, a Methuselah from Trinity Blood Apocrypha: Hard Rain. She is a serial killer who murdered more people than Endre; including her own partner.
- Marc Antonio Vlaski, Major of the Gold Horn Knights
- Maria, Gyula Kadar's wife
- Mary Spencer, Colonel of the Albion Navy
- Matthaios, an Inquisitor
- Melchior von Neumann, Rosenkreuz Orden member "Pygmalion"
- Michelle Lee, a prostitute and former handmaiden of Edward White.
- Miliza Nevşehir , daughter of the Count of Paris. Featured in Apocrypha, a pilot for the Trinity Blood.
- Mimarl Suinan, a medicine seller from the Empire
- Mireille Manson, a vampire
- Mirka Fortuna, Countess of Moldova
- Monica Argento, AX Agent "Black Widow"
- Orhan, crewman of the Nereiades
- Paula Souwouski, Vice-Chief of the Department of Inquisition
- Philippos, an Inquisitor
- Petros Orsini, Chief of the Department of Inquisition
- Radu Barvon, Baron of Luxor
- Reyard, Duke of Macedonia
- Ryustem bin Shadaad, First Mate of the Nereiades
- Sarkis, crewman of the Nereiades
- Selim, Shahrazad al-Rahman's retainer
- Seth Nightlord
- Sieglinde, Melchior's killing dolls
- Shahrazad al-Rahman, Countess of Babylonia
- Simone, an Inquisitor
- Socorul, chief sailor of the Nereiades
- Sulayman, Duke of Tigris
- Susanne von Skorzeny, Rosenkreuz Orden member "Red Baroness"
- Thaddeus, and Inquisitor
- Tres Iqus, AX Agent "Gunslinger"
- Todd Cunningham, Lance Corporal in the Albion army
- Tristan, a soldier in the Vatican Army
- Vaclav Havel, AX Agent "Know Faith"
- Vanessa Walsh, Virgil's sister
- Vashmar, Marquis of Navarino
- Virgil Walsh, Count of Manchester
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