| | | | Part One: The Shore |
| 1 | Dexter | Styles | Businessman. |
| | Anna | | Eddie Kerrigan's daughter. |
| | Harriet | Styles | Dexter Styles's wife. aka: Hattie. |
| | Agnes | Kerrigan | Anna's mother. aka: Aggie. |
| | Tabatha | | Dexter Styles's daughter. aka: Tabby. |
| | Phillip | | Tabatha's brother. |
| | John-Martin | | Phillip's twin brother. |
| | Eddie | Kerrigan | Agnes's husband. aka: Aggie. |
| | Lydia | | Anna's younger sister. |
| 2 | Brianne | Belaire | Ed's sister. |
| | Bert | | An Olympian. |
| | Rudy | Vallee | A trumpeter. |
| | John | Dunellen | A man who wants to be an alderman. aka: Dunny. |
| 3 | | Feeneys | One of Kerrigan's neighbors. |
| | Mrs. | Baxter | One of Kerrigan's neighbors. |
| | | Lutz | One of Kerrigan's neighbors. |
| | | Boyle | One of Kerrigan's neighbors. |
| | Pearl | Gratzky | Agnes's acquaintance. |
| | Mr. | Gratzky | Pearl's husband. |
| | Mr. | Praeger | Agnes's neighbor. |
| | Matty | Flynn | A barkeeper. |
| | Jimmy | Braddock | A boxer. |
| | | Lunergan | Dunellen's acquaintance. |
| | Dare | Dooling | A banker. |
| | Cardinal | Hayes | Dare Dooling's close friend. |
| | Nat | | Dunellen's acquaintance. |
| | Maggie | | Dunellen's wife. |
| | | Tancredo | A wop. |
| | Bart | Sheehan | Worked for the state attorney's office. |
| 4 | Jacob | De Veer | One of Eddie's
acquaintances. |
| | Sid | | One of Eddie's
acquaintances. |
| | | Polsky | One of Mr. De Veer's acquaintances. |
| | | Goulds | One of Mr. De Veer's acquaintances. |
| | | Fisk | One of Mr. De Veer's acquaintances. |
| | | Vanderbilt | One of Mr. De Veer's acquaintances. |
| | Reverend | Parkhurst | A priest. |
| | Arnold | Rothstein | A young sheenie who won by cheating. |
| | Miss | De Veer | Mr. De Veer's sister. |
| | | | Part Two: Shadow World |
| 5 | Charlie | Voss | Anna's supervisor. |
| | Rose | | Anna's co-worker. |
| | Nell | Konopka | One of Anna's friends. |
| | Hardy | | Nell's acquaintance. |
| | Rogers | | Nell's co-worker. |
| | Stella | Iovine | One of Anna's friends. |
| | Lillian | Feeney | One of Anna's friends. |
| 6 | Louie | | An actuarial. |
| | Marco | | Louie's acquaintance. |
| | Gino | | A waiter. |
| | Anna | Feeney | Name Anna Kerrigan introduced herself as to Dexter Styles. |
| 7 | Badger | | A man who worked for Dexter Styles. |
| | Mr. | Healey | Mr. Mackey's acquaintance. |
| | Mr. | Q. | Dexter Styles's silent business partner. |
| | Hugh | Mackey | Mr. Styles's associate. |
| | Milda | | A maid. |
| | Nathalie | | Tabatha's friend. |
| | | Winchell | Dexter's friend. |
| | Deacon | Bertoli | A predecessor. |
| | Beth | Berringer | Harriet's mother. |
| | Arthur | Berringer | Beth's husband. |
| | Arthur Jr. | | Arthur Berringer's only son. aka: Cooper. |
| | George | Porter | A surgeon. |
| | Henry | Foster | A schoolmaster. |
| | Regina | | Harriet's older sister. |
| | Grady | | Cooper's son. |
| | Marsha | | Cooper's wife. |
| | Bitsy | | Harriet's younger sister. |
| | Edith | | George's daughter. |
| 8 | Liza | | Hugh Mackey's daughter. |
| | | | Part Three: See The Sea |
| 9 | Dr. | Deerwood | Lydia's physician. |
| | Mr. | Mucciarone | A grocery owner. |
| | Silvio | | Anna's acquaintance. |
| | Mr. | Z. | Brianne's lover. |
| | Milford | Wilkins | Brianne's acquaintance. |
| | Seamus | | Lillian's older brother. |
| | Leon 1 | | Anna's boyfriend. |
| | Loretta | Stone | Anna's friend. |
| 10 | Deborah | | Rose's friend. |
| | Melvin | | Rose's son. aka: Melly. |
| | Douglas | MacArthur | An American five-star general. |
| | Mrs. | Hart | A woman who worked at the Naval Yard. |
| | Matthew | Perry | A commander of the U.S. Navy. |
| 11 | Lieutenant | Axel | A master naval diver. |
| | Mr. | Greer | One of the tenders. |
| | Mr. | Katz | One of the tenders. |
| | | | Part Four: The Dark |
| 13 | Walter | Lipp | Brianne's old friend. |
| | Freddie | | Anna's acquaintance. |
| | Father | McBride | A priest. |
| | Mr. | White | A druggist. |
| | Mr. | Iovine | Stella's father. |
| | Mrs. | Mucciarone | Silvio's mother. |
| | Mrs. | Dewitt | An unmarried woman who is living alone. |
| 14 | Frankie | | Mr. Q.'s eldest son. |
| | Giulio | | One of Frankie's brothers. |
| | Johnny | | One of Frankie's brothers. |
| | Joey | | Frankie's youngest brother. |
| | Aldo | Roma | An old-school racketeer. |
| | Mrs. | Mackey | Hugh's wife. |
| | Lolly | | A Scotch terrier. |
| | Angelina | | A cow. |
| | Annaliza | | Mr. Q.'s late wife. |
| | Andrew | Volstead | A congressman of Minnesota. |
| 15 | Olmstead | | A machinist. |
| | Paul | Bascombe | One of the tenders. aka: Basky. |
| | | Sacco | One of the trainees. |
| | | Mohele | One of the trainees. |
| | | Hammerstein | One of the trainees. |
| | | Littenberg | One of the trainees. |
| | | Maloney | One of the trainees. |
| | | Marle | A welder. |
| | Ruby | | Bascombe's fiancé. |
| | | Newmann | One of the trainees. |
| | | Savino | The least skilled among the diving class. |
| | | Fantano | One of the trainees. |
| | | Morrissey | One of the trainees. |
| 16 | | Hammond | Nell's friend. |
| | | | Part Five: The Voyage |
| 18 | Mr. | Farmingdale | A pariah. |
| | | Kittredge | A captain. |
| | Ingrid | | A young, widowed school teacher. |
| | | Ochylski | An engineer. |
| | Dane | | The first mate. |
| | Roger | | A deck cadet. |
| | Stanley | | An engine room cadet. |
| | Sparks | | The radioman. |
| | Pugh | | The ancient third cook. |
| | Lily | | Sparks's sister. |
| | Stephan | | One of Ingrid's sons. |
| | Fritz | | One of Ingrid's sons. |
| | Helen | | Ingrid's baby girl. |
| | | | Part Six: The Dive |
| 20 | Booth | Kimbal | A polo champion. aka: Boo Boo. |
| | Pippa | | Boo Boo's wife. |
| | Mr. | Bonaventura | A cook. |
| 21 | | Grollier | Trained as a burner. |
| 22 | Lieutenant | Rosen | The armed guard commander. |
| | | Wyckoff | Rosen's junior officer. |
| 23 | Mrs. | Adair | Eddie's acquaintance. |
| | Joey | Ryan | The president of the International Longshoremen's Union. |
| 24 | Enzo | | One of Dexter's men. |
| | Nestor | | The holmsman. |
| | | | Part Seven: The Sea The Sea |
| 25 | Lucy | | Tabby's friend. |
| | Carmen | Miranda | Dexter's acquaintance. |
| | Felicity | | Boo Boo's daughter. |
| | Jimmy | | Badger's man. |
| | Harlan | | A fisherman. |
| 26 | Bogues | | A navy gunner. |
| | Pelemonade | | A deck crew. |
| 27 | Hiram | | Rose's younger brother. |
| | Andrew | Metuchen | One of the boys who found Dexter Styles's dead body. |
| | Sandy | Kupeck | One of the boys who found Dexter Styles's dead body. |
| | Sig | | An army. |
| | Caleb | | An army. |
| | Dr. | Soffit | An obstetrician. |
| 28 | | Ostergaard | A man who suffered sunstroke. |
| | Hummel | | One of the men who gulped seawater. |
| | Addison | | One of the men who gulped seawater. |
| | Annabelle | | Roger's girl. |
| | | | Part Eight: The Fog |
| 29 | Albert | | A waiter. |
| | Francine | | Brianne's co-worker. |
| | Mr. | Leontaker | Brianne's landlord. |
| 30 | Charlie | Smith | The name of Anna's husband. |
| | Margaret | Truman | Daughter of Missouri's senator. |
| 31 | Leon 2 | | Anna's son. |
