| | | | Part One - No One Shall Sleep |
| 1 | Benito | Mussolini | The Fascist Dictator. Aka: II Duce. |
| | Adolf | Hitler | The Leader of the Nazi Party. |
| | Guiseppe | Lella | Protagonist. Aka: Pino. |
| | Carleto | Beltramini | Pino's best friend. |
| | Cardinal | Schuster | Famous and powerful. A Cardinal in Milan. |
| | Pope | Pius XII | The Cardinal who was in the newspaper. |
| | Father Luigi | Re | Schuster's
acquaintance. Priest saved refugees from Nazis. |
| | Giovanni | Barbareschi | A seminarian. |
| | Anna | Marta | A girl Pino asked out on a date. Dolly's maid. |
| 2 | Greta | | Pino's Austrian aunt. |
| | Albert | | Greta's husband. Pino's uncle. |
| | Tullio | Galimberti | Pino's idol. Pino's family friend. |
| | Michele | Lella | Pino's father. |
| | Cicci | Lella | Pino's father. |
| | Porzia | Lella | Pino's mother. |
| | Fred | Astaire | An American dancer. |
| | Rita | Hayworth | An American actress. |
| 3 | Cristina | | Tullio's friend. |
| | Rabbi | Zolli | The Chief Rabbi in Rome. |
| | Mr. | Beltramini | Carletto's mother. |
| | Miguel | Fleta | A powerful tenor. |
| | Prince | Calaf | A wealthy royal who falls in love with Princess Turandot. |
| | Mark | Clark | The U.S. Lieutenant General Commander of the U.S. Fifth Army. |
| | | | Part Two - The Cathedrals of God |
| | Alberto | Ascari | The ski driver that Pino met. One of the lodgers at Contes's inn. |
| | Brother | Bormio | The priest's assistant. |
| 6 | Nicco | Conte | The Innkeeper's son. Pino's friend. |
| 7 | Titiana | | Ascari's friend. |
| | Frederica | | Titiana's friend. |
| 8 | Maria | | A refugee Pino helped escape from the Nazis. |
| | Ricardo | | Maria's husband. A teacher in Genoa. |
| | Luigi | | A cigarette trader. |
| | Ruth | | Luigi's wife. |
| | Mr. | Bergstrom | A Swiss man who helped refugees escape from the Nazis. |
| | Mr. | Conte | The Innkeeper. Nicco's father. |
| | Tito | | A Nazi spy at Conte's Inn. |
| | Mrs. | Conte | Nicco's mother. |
| 10 | Elena | Napolitano | The violinist. Michele's friend. |
| | Peter | D'Angelo | D'Angelo's father. One of the refugees that Pino helped. |
| | Liza | D'Angelo | Peter's wife. |
| | Anthony | D'Angelo | Peter and Liza's child. |
| | Judith | D'Angelo | Peter and Liza's child. |
| | | | Part 3 - The Cathedrals of Man |
| 13 | Licia | | Pino's cousin. |
| | Baka | | Albert's friend. |
| | Sonny | Mascolo | A man who saw Tullio get caught by Gestapo. |
| 14 | Pritoni | | Pino's partner. |
| | Hans | Leyer | A man who Pino served for as driver. A high-ranking official. |
| | Marshal | Kesselring | The most powerful German in Italy. |
| 15 | Albert | Speer | Hitler's Reich Minister for armaments and war production. |
| | Dolly | Stottlemeyer | General Leyer's mistress. Anna's boss. |
| | Antonio | | A slave that Pino met. |
| 16 | Claretta | Petacci | II Duce's mistress. Aka: Clara. |
| 19 | Mr. | Calabrese | The manager at Fiat's mirafiore factory. |
| | Hans-Jurgen | Leyers | General Leyer's son. |
| | Wilhelm | | General Leyers's nephew. Aka: Willy. |
| | Rommel | | Wilhelm's boss. Aka: The Desert Fox. |
| | Mrs. | Plastino | Dolly's neighbor. |
| 21 | Rachele | Mussolini | II Duce's wife. |
| | | | Part 4 - The Cruelest Winter |
| 22 | Mr. | Alexander | A British Field Marshall. |
| | Christian | | Anna's ex-husband. Deceased. |
| 23 | Karl | Wolff | The head of SS in Italy. |
| | Lisa | Rocha | Porzia's best friend. |
| | Gabriella | Rocha | Lisa's daughter. |
| | Raphael | | A member of II Duce's army. |
| 24 | Sara | | The sick girl Pino helped. |
| | Father | Bonnano | Cardinal Schuster's assistant. |
| 25 | Eugen | Dollman | Hitler's translator. |
| | Heinrich | V. Vietinghoff | The field marshall of Italy. |
| 27 | Mr. | Padua | An OT Officer. |
| | Mario | | Michele Cousin's son. |
| | Max | Corvo | Allen Dulle's representative. The OSS Agent. |
| | | | OSS - Office of Strategic Services. |
| 28 | Frank | Knebel | A major at the U.S. Fifth Army. |
| | Corporal | Daloia | A soldier from Boston. |
| 29 | Sophia | | The first Italian girl that Pino invited to a party. |
| 31 | Luigi | | The guard at the cemetery. |
| 32 | Sam | | Carletto's uncle. |
| | | | Part 5 - "Vengeance is Mine" - Sayeth The Lord |
| 34 | Dwight | Eisenhower | The Supreme Allied Commander of the U.S. Fifth Army. |
