| Marjorie |
Baker | One of Nora's classmates. |
| Ed |
Barber | Detective. |
| William |
Bennett Jr. | Thirty-five-year-old man involved in a car accident. |
| Henry |
Callahan | Dr. Davis's former patient. |
| Ruth |
Chelmsford | Brady's landlady. |
| Frederic |
Chopin | Polish composer. |
| Philip |
Corey | Dr. Nora Davis's business partner and fellow surgeon. |
| Mrs. |
Corey | Dr. Corey's ex-wife. |
| Jamie Lee |
Curtis | American actress and film producer. |
| Amanda |
Cutraro | One of Nora's classmates. |
| Nora |
Davis | A successful surgeon. Real name: Nora Nierling. |
| Charles |
de Gaulle | General and former President of France. |
| Danfield |
Dr. | Dr. Davis's fellow physician. |
| Timothy |
Dudley | Dr. Davis's patient. |
| Bill |
Gates | American businessman and philanthropist. |
| Shelby |
Gillis | Nora Davis's patient. |
| Patricia |
Holstein | Nora's lawyer. |
| Mandy |
Johansson | A girl whose remains were found behind the locked door of Aaron Nierling's basement. |
| Arnold |
Kellogg | Dr. Davis's patient. |
| Diane |
Kellogg | Arnold Kellogg's wife. |
| Tiffany |
Kirk | One of Nora's classmates. |
| Freddy |
Krueger | Fictional character from A Nightmare on Elm Street. |
| Mrs. |
McGinley | Nora's teacher. |
| Brady |
Mitchell | Nora's former college boyfriend. |
| Michael |
Myers | Fictional character from Halloween. |
| Aaron |
Nierling | A serial killer commonly known as the Handyman. |
| Nora |
Nierling | Real name of Dr. Nora Davis. |
| Mrs. |
O'Leary | School principal. |
| Kayla |
Ramirez | Dr. Davis's patient. |
| Kari |
Smith | One of Nora's classmates. |
| Laurie |
Strode | Fictional character from the Halloween horror movie. |
| Amber |
Swanson | Former patient of Nora Davis. |
| Mrs. |
Swanson | Amber's mother. |
| Quentin |
Tarantino | American filmmaker and actor. |
| Officer |
Varallo | Policeman. |
| Becky |
| Harper's roommate. |
| Bridget |
| Philip and Nora's former secretary. |
| Harper |
| Sweet receptionist at Nora Davis's surgical practice. |
| Linda |
| Nora's mother. |
| Meagan |
| Young nurse. |
| Meowsie |
| Nora's cat. |
| Paula |
| Medical staff. |
| Ruby |
| Brady's daughter. |
| Sheila |
| Medical assistant. |
| Sonny |
| Harper's boyfriend. |
