| Selma | Abernathy | Patrick's favorite technician. |
| Charles | Albert | The judge in Peter's case. |
| Emma | Alexis | One of Peter's victims. One of the beautiful girls in Sterling High. |
| Mr. | Alstrop | An architect. Potential juror in Peter's case. |
| Mrs. | Aracort | A teacher-adviser to the cheerleaders. |
| Elena | Battista | A girl who was doing research about bullying. |
| Michael | Beach | Freshman at Sterling High. |
| Loomis | Bronchetti | Alex's former client. |
| Mr. | Cargrew | Peter and Josie's boss. Owner of a xerox shop. |
| Elaine | Chao | The head of the Department of Labor. |
| Marcia | Clark | The vet's assistant. |
| Alexandra | Cormier | A superior court judge. Josie's mother. |
| Josephine | Cormier | Alex's daughter. Peter's former close friend. |
| Ann | Curry | A news reporter. |
| Patrick | Ducharme | The sole detective of Sterling Police. |
| Rodney | Eakes | A bank teller. |
| John | Eberhard | Matt's friend. |
| Mrs. | Edgar | One of the teachers in Sterling High. |
| Gunther | Frankenstein | A state medical examiner. Patrick's friend. |
| Justin | Friedman | Michael's friend. One of Peter's victims. |
| Linus | Froom | Alex's client. |
| Nina | Frost | Tara's mother. Patrick's bestfriend. |
| Tara | Frost | Nina's daughter. Patrick's goddaughter. |
| Kelly | Gamboni | A victim of gang-rape. Lacy's patient. |
| Judge | Gerhardt | Alex's colleague. |
| Lawrence | Ghertz | A neuropsychiatrist who examined Peter. Dr. King's colleague. |
| Drew | Girard | Matt's friend. |
| Kaitlyn | Harvey | One of Peter's victims. |
| Yvette | Harvey | Kaitlyn's mother. |
| Whit | Hobart | Alex's former boss in the public defender's office. |
| Min | Horuka | One of Peter's victims. An exchange student from Tokyo. |
| Joseph | Houghton | Peter's brother. Deceased. Aka: Joey. |
| Lacy | Houghton | Alex's midwife and friend. Peter's mother. |
| Lewis | Houghton | Lacy's husband. Peter's father. |
| Peter | Houghton | Lacy's son. The school shooter who killed 10 students. |
| David | Iannucci | One of the judges in Peter's case. |
| Courtney | Ignatio | The alpha female at Sterling High. One of Peter's victims. |
| Mark | Ignatio | Courtney's father. |
| Janet | Isinghoff | Lacy's patient who doesn't want her as midwife. |
| Dolores | Keating | Peter's former classmate. |
| Fiona | Kierland | Freshman at Sterling High. |
| Diana | Leven | An assistant attorney general in Boston. |
| Hugh | MacQuarie | The chairman of the Econ Department. |
| Dee Dee | Markowitz | Derek's mother. |
| Derek | Markowitz | Peter's friend. A computer wizard. |
| Jordan | McAfee | Peter's lawyer. |
| Sam | Mcafee | Jordan and Selena's baby. |
| Selena | McAfee | Jordan's wife. |
| Thomas | McAfee | Jordan's son on his first marriage. |
| Edward | McCabe | Peter's math teacher. One of Peter's victims. Aka: Ed. |
| Joan | McCabe | Ed's sister. |
| Arthur | McCallister | The school principal at Sterling High. |
| Mrs. | McDonald | Peter's art teacher. |
| Trey | McKenzie | Matt's friend. |
| Topher | McPhee | One of Peter's victims. The school's pot dealer. |
| Grace | Murtaugh | One of Peter's victims. Daughter of a local minister. |
| Raven | Napalm | Lead singer of the band "Death Wish". |
| Roman | Nelson | The senator in South Dakota. |
| Whitaker | Obermeyer | One of Peter's victims. |
| Eddie | Odenkirk | Patrick's workmate. |
| Mr. | O'Reilly | The defendant who flirted with Alex. |
| Chief | O'Rourke | Patrick's superior. |
| Philip | O'Shea | Ed's gay partner. |
| Zoe | Patterson | Mr. McCabe's student. One of Peter's victims. |
| Ervin | Peabody | College Psychiatry professor. |
| Angela | Phlug | Natalie's friend. The weird girl who was bullied. |
| Austin | Prokiov | One of Peter's victims. |
| Brady | Pryce | A football player. Josie's friend. |
| Mrs. | Rasmussin | Peter's former teacher. |
| Joe | Riccobono | Katie's abusive husband. Deceased. |
| Katie | Riccobono | A wife who had plunged a knife to her husband's chest. |
| Miss | Ritolli | Josie's former teacher. One of Peter's victim's. |
| Logan | Rourke | Josie's father. Alex's former trial advocacy professor and lover. |
| Matthew | Royston | Josie's boyfriend. Aka: Matt. |
| Mr. | Royston | Matt's father. |
| Mrs. | Sandringham | Peter's English teacher. |
| Nadya | Saranoff | One of Alex's former clients. |
| Jeanne | Shaheen | A young democratic governor. |
| Madeleine | Shaw | Courtney's sidekick. One of Peter's victims. Aka: Maddie. |
| Dusty | Spears | A basketball coach at Sterling High. |
| Arliss | Undergroot | A sheetrock installer. |
| Curtis | Uppergate | A forencsic psychiatrist. |
| Joe | Urquhardt | A Canadian banker. |
| Meredith | Viera | A news anchor. |
| Judge | Wagner | Alex's colleague. |
| King | Wah | A specialist in Battered Woman Syndrome. |
| Mrs. | Wahl | The librarian at Sterling High. |
| Mr. | Weatherball | Peter's neighbor. A retired cop. |
| Haley | Weaver | Brady's girlfriend. The homecoming queen in Sterling High. |
| Mrs. | Whyte | The school's gym secretary. |
| Mr. | Yarbrowski | Peter's soccer coach. |
| Natalie | Zlenko | One of Peter's victims. The President of Glaad Club. |
| Carnivore | | Peter's cellmate. |
| Dozer | | Lacy's dog. |
| Eleanor | | Alex's clerk. |
| Ishmael | | Clerk in Alex's office. |
| Janine | | Lacy's patient. |
| Jarvis | | Patrick's colleague. |
| Kurt | | Gay. Someone Peter met at a Gay Bar. |
| Liz | | The groundskeeper. Alex's friend. |
| Orestes | | Peter's friend. |
| Rico | | A bartender at the Gay Bar. |
| Teddy | | Alex's former client. |
