All characters, major, minor and transitory, appearing in The Gilded Hour, entered in no particular order. Women are listed by maiden name + married name.
Status: F=fictional H-historical *indicates that a full character sketch has been or will be begun.
| FIRST | LAST | APPEARS | DESCRIPTION | STATUS |
| Martha | Kirby Bonner | W4 W6 GH | Wife of Daniel Bonner | F* |
| Kathleen | Hawkins | GH | Nurse, demoted by Anna | F |
| Sister Francis | Xavier | GH | Sisters of Charity. Procuratrix, St. Patrick’s Orphan Asylum | F |
| Anthony | Comstock | GH | Secretary, New York Society for the Suppression of Vice; postal inspector | H* |
| Jack | Mezzanotte | GH | Detective Sergeant NYPD | F* |
