| Title | Character | Description |
| Lady Susan | Sir James Martin | Intended for Frederica, he is in love with Juvenilia: Lady Susan and eventually marries her |
| Lady Susan | Mrs. Alicia Johnson | Lady Sue's confidante. Of Edward St, where she lives with Mr Johnson, who has old Aunts at Bath |
| Lady Susan | Wilson | Lady Susan's maid |
| Lady Susan | Mrs. Catherine Vernon | Married to Charles Vernon, daughter of Sir Reg. and Lady De Courcey |
| Lady Susan | James | Reginald's servant |
| Lady Susan | Miss. Summers | Schoolmistress at Wigmore St. |
| Lady Susan | Hamiltons(s) | a family |
| Lady Susan | Charles Smith | a passing mention |
| Lady Susan | Miss. Frederica Susanna Vernon | daughter of Lady Susan. At school. Marries Reginald (younger) de Courcy |
| Lady Susan | Lady Susan Vernon | daughter of a peer, widow of unnamed Vernon, formerly of Vernon CAstle, Staffordshire. Also of Upper Seymour St. and 10 Wigmore St. London |
| Lady Susan | Clarke(s) | family of Clarkes, of Staffordshire |
| Lady Susan | Mr. Reginald De Courcy (younger) | marries Frederica Vernon |
| Lady Susan | Mr. Charles Vernon | of Churchill, Sussex. Youngest son of Lady Sue's first husband. Married to Catherine De Courcy, with children in abundance inc. Frederick and Catherine |
| Lady Susan | Manwaring | of Langford. Married (wife's name unknown?), sister Maria. The object (of sorts) of Lady Susan's affections |
| Lady Susan | Sir Reginald De Courcy (elder) | of Parklands, Sussex. Married to C- (Catherine?)Son Reginald, daughter Catherine |
