| | | | Bonds |
| 1 | Benjamin | Rask | A legendary Wall Street tycoon. |
| | Solomon | Rask | Benjamin's father. A tobacco business owner. |
| | Grover | Cleveland | Solomon's customer. |
| | William Zachary | Irving | Solomon's customer. |
| | John Pierpont | Morgan | Solomon's customer. |
| | Wilhelmina | Rask | Benjamin's mother. |
| | John | Winslow Jr. | The man who managed Rask's assets. |
| | Charles | Barney | The President of Knickerbocker Trust Co. |
| | Shleldon | Lloyd | Benjamin's most-trusted assistant. |
| 2 | Leopold | Brevoort | Helen's father. |
| | Catherine | Brevoort | Helen's mother. |
| | Helen | Brevoort | Benjamin's wife. |
| | Margaret | Pullman | Brevoort's friend. |
| | Mrs. | Osgood | One of Brevoort's close friends. |
| | Franz | Ferdinand | The archduke. |
| | Pleasant | Stovall | U.S. minister to Switzerland. |
| | Dr. | Bally | The owner of Medico-Mechanic Institute. |
| | Mr. | Betterley | One of Brevoort's close friend. |
| 3 | Irving | Fisher | The nation's leading authority on economics. |
| | Jack | | Pierpont's son. |
| | Winnie | | One of Helen's friends. |
| | P.Casals | | One of Helen's friends. |
| | Pep | | One of Helen's friends. |
| | Shelby | Wallace | One of Helen's friends. |
| | Maude | | One of Helen's friends. |
| 4 | Helmut | Frahm | The current director of Medico-Mechanic Institute. |
| | Ladislas | Aftus | A psychologist in Berlin. Helen's new doctor. |
| | Lorenz | Rantzau | The man from Haber Pharmaceuticals who wrote to Benjamin. |
| | | | My Life |
| Pre | Andew | Bevel | A Manhattan financier. Narrator. |
| | Mildred | Bevel | Andrew's wife. |
| | | | I |
| | William Trevor | Bevel | Andrew's great-grandfather. |
| | Thomas | Jefferson | The 3rd U.S. President. |
| | Louisa | Foster | William's wife. |
| | Clarence | Bevel | William and Louisa's son. Andrew's grandfather. |
| | Thomasina | Holbrok | Andrew's grandmother. Clarence's wife. |
| | Edward | Bevel | Tommy and Clarence's son. Andrew's father. |
| | Grace | Cox | Edward's wife. Andrew's mother. |
| | | | II |
| | Archie | | One of Andrew's friends. |
| | Cager | | One of Andrew's friends. |
| | Dick | | One of Andrew's friends. |
| | Fred | | One of Andrew's friends. |
| | Pepper | | One of Andrew's friends. |
| | Prof | Keene | Andrew's math mentor. |
| | | | IV |
| | Adelaide | Howland | Mildred's mother. |
| | George Calvert | Leighton | Andrew's architect. |
| | | | Benefactress |
| | Gatti-Casazza | | The general manager of Metropolitan Opera. |
| | | | V |
| | Coolidge | | The former President. |
| | Warren | Harding | The current President. |
| | | | A Memoir Remembered |
| | | | Part 1 |
| 1 | Ida | Partenza | Andrew's autobiographer. Aka: Caroline Kincaid, Ida Prentice. |
| | Mr. | Shakespear | The man who interviewed Ida. |
| 3 | Arturo | Giovanitti | A poet. |
| | Anna | Lopizzo | A mill worker who was killed during the strike. |
| | Enrico | Malatesta | One of the founding fathers of Anarchism. |
| 6 | Mr. | Prentice | Ida's father. |
| 7 | Mattia | | Ex-boyfriend of Ida's mother. |
| 8 | Harold | Vanner | The man who wrote a novel about Mildred. |
| 9 | Jack | | Ida's boyfriend. |
| | | | Part 2 |
| 2 | Miss | Clifford | The Bevel's housekeeper. |
| 7 | Luigi | Galleani | An Italian writer. |
| 9 | Mikhail | Bakunin | A Russian revolutionary anarchist. |
| | Giordano | Bruno | An Italian philosopher. |
| | | | Part 3 |
| 1 | Bruno | Walter | The conductor. |
| | Fritz | Keisler | A violinist. |
| | Jascha | Heifetz | A violinist. |
| | Ernest | Bloch | A composer. |
| | Igor | Stravinsky | A composer. |
| | Amy | Beach | A composer. |
| | Mary | Howe | A composer. |
| | Raimund | Mandl | A composer. |
| | Ottorino | Respighi | A composer. |
| | Ruth | Crawford | A composer. |
| | Pau | Casals | A musician. |
| | Edgard | Varese | A musician. |
| 3 | Alexander Dana | Noyes | A journalist. |
| 4 | Woodrow | Wilson | The 28th U.S. President. |
| | Roger | Babson | An American entrepreneur. |
| 11 | Paracelsus | | The 1st
physician of the spa. |
