| | | | Part One Robbery |
| 1 | Thomas | Hawkins Jr. | The protagonist. aka: Tom. |
| | Charles | Buckley | Tom's oldest friend. |
| | Betty | | A young maid servant. |
| | Sir Philip | Meadows | A Knight Marshall and responsible for the Marshalsea. |
| | Moll | King | Ran a coffeehouse called Moll King's. |
| | Rev. Thomas | Hawkins Sr. | Tom Hawkin's father. |
| | Sam | | A moon-curser. |
| 2 | Benjamin | Fletcher | Tom's landlord. |
| | Jakes | | A warrant officer. |
| | John | Roberts | Jakes' friend. |
| | Edmund | | Tom's step-brother. |
| | Willianm | Acton | A former butcher now the governor at the Marshalsea. |
| | | | Part Two Murder Thursday, The First Day |
| 3 | Joseph | Cross | A turnkey at Marshalsea. |
| | Catherine | Roberts | Captain Roberts' wife. |
| | Jane | | Tom's sister. |
| | Samuel | Fleet | Tom's roommate. |
| | Harry | | One of the prisoners. |
| | Mary | Acton | William Acton's wife. |
| 4 | Gilbert | Hand | Acton's trusty but also ran errands for prisoners. |
| | Benjamin | | One of Mr. Hand's boys. |
| | John | Grace | Mr. Acton's clerk. |
| | Sarah | Bradshaw | Owned a coffeehouse in the Marshalsea. |
| | Lizzie | Smith | Tom's acquaintance. |
| | Catherine | Sparks | Mrs. Bradshaw's maid. aka: Kitty. |
| | Richard | McDonnell | Ran the chophouse known as Titty Dolls. aka: Mack. |
| | Madame | Migault | A fortune teller. aka: Miggy |
| | Andrew | Woodburn | A chaplain. |
| | Mr. | Jenings | A night watchman. |
| | Mrs. | Carey | Mrs. Bradshaw's acquaintance. |
| | Jim | | One of Mr. Hand's boys. |
| | Jack | Carter | One of the prisoners at Marshalsea. |
| | Henry | | Mr. Acton's son. |
| 5 | Trim | | A prisoner and acted as the Master's side barber. |
| | Mrs. | Mack | McDonnell's wife. |
| 6 | Henry | Chapman | A barman in the Marshalsea. |
| | | | II) Friday, The Second Day |
| 7 | Edward | Gilbourne | A deputy protonotary of the Marshalsea Court. |
| 9 | Matthew | | Mrs. Roberts' son. |
| 10 | James | Wilson | Mary Acton's father. |
| | Mrs. | Wilson | Mary Acton's mother. |
| | | | III) Saturday, The Third Day |
| 13 | Ralph | Anderson | A prisoners in the Common Side. |
| | Harry | Mitchell | Former Captain Roberts' servant. |
| 14 | Matthew | Pugh | A steward. |
| | | Darby | Former governor at the Marshalsea. |
| 15 | Mr. | Smith | Fleet's acquaintance. |
| | Mr. | Simmons | John Roberts' old gambling friend. |
| 16 | Wills | | One of the turnkeys at the Marshalsea. |
| | | | IV) Sunday, The Fourth Day |
| 17 | Mrs. | Speed | Landlady of the bar. |
| 18 | Nemehiah | Whittaker | A baker. |
| | Nathaniel | Sparks | Kitty's father. |
| | Emma | | Kitty's mother. |
| 19 | Stephen | Siddall | An apothecary. |
| | | | V) Monday, The Last Day |
| 23 | Fred | Owen | Anderson's former ward mate. |
| | | | Part Three Life and Death |
| 25 | Mary | Meadows | One of Sir Philip's daughters. |
| | Constance | Meadows | One of Sir Philip's daughters. |
| | Lady Dorothy | | Sir Philip's wife. |
| 27 | James | | Sam Fleet's half-brother. |
