| Dr. | Abbasi | Anne's new doctor at Capital District Psychia-tric Hospital |
| Sean | Barnett | One of Peter & Kate's classmates |
| Mr. | Behan | One of Kate's teachers in high school |
| Coach | Bell | Peter's track coach at Dutch Kills Prep |
| Jessica | D'Angelis | One of Peter & Kate's classmates |
| Barry | Dillon | Teammate of Peter's on the track team |
| John | Dills | One of Peter & Kate's classmates |
| Mr. | Diviny | Lawyer, friend of Brian |
| Officer | Dulley | Police officer called to the scene at the Food King store |
| Mrs. | Duvin | Peter's 6th grade teacher |
| Laura | Fumagalli | One of Peter & Kate's classmates |
| Deacon & Mrs. | Gallagher | Sex ed teachers at Peter & Kate's school |
| Francis | Gleeson | Rookie cop in the 41st Precinct of the NYPD |
| Kate | Gleeson | Francis & Lena's 3rd daughter |
| Natalie | Gleeson | Francis & Lena's first daughter |
| Sara | Gleeson | Francis & Lena's 2nd daughter |
| Lisa | Gordon | One of Peter & Kate's classmates |
| Marie | Halladay | One of Kate's school friends in high school |
| | Jaffe | Police sergeant |
| Joan | Kavanaugh | Mother of Casey, one of Kate's classmates |
| Mr. | Kilcoyne | Neighbor of Anne's in Ireland when she was young |
| Dr. | Lehrer | Criminalist in the NYPD who interviewed Kate |
| Joey | Maldonado | One of Peter & Kate's classmates |
| Mr. | Maldonado | One of the neighbors |
| Eddie | Marik | A senior in high school who becomes Kate's boyfriend |
| Johnny | Murphy | Customer at the Food King store, former high school baseball star |
| Mrs. | O'Connor | Teacher at Peter & Kate's school |
| Vincent | O'Grady | Student who gave the valedictory speech at the high school graduation when Peter was not available |
| Mr. | O'Hara | One of the neighbors |
| Dr. | Oliver | Anne's new doctor |
| Mrs. | Paulino | 1st floor neighbor of George & Rosaleen |
| Mrs. | Quirk | Science teacher from Peter's old school (St. Bart's) |
| Mr. | Schiavone | Gym teacher at Peter & Kate's school |
| Chris | Smith | One of Peter's classmates |
| Mr. | Smith | Chris' grandfather |
| Anne | Stanhope | Brian's wife |
| Brenda | Stanhope | George's wife, Peter's aunt |
| Brian | Stanhope | Francis's partner |
| Frankie | Stanhope | Peter & Kate's son |
| George | Stanhope | Peter's uncle, his father's brother |
| Molly | Stanhope | Peter & Kate's daughter |
| Peter | Stanhope | Brian & Anne's son |
| Angelo | Teobaldo | Lena's father |
| Gosia | Teobaldo | Lena's mother |
| Karol | Teobaldo | Lena's brother |
| Lena | Teobaldo | Francis's fiancé |
| Natusia | Teobaldo | Lena's sister |
| Mrs. | Wortham | Customer in the Food King store, works at the podiatrist's office |
| Amy | | Kate's friend & fellow camp counselor, soccer teammate |
| Benny | | Peter's police union rep |
| Bernadette | | Anne's younger sister |
| Bridget | | Anne's friend when she lived in England |
| Coach | | Peter's college track coach at Elliott College |
| Dana | | Daughter in the family who bought the Stanhope's house |
| Karolina | | Lena's cousin |
| Margaret | | Director of the Eirene Halfway House |
| Marisol | | Worker at the rehab center to which Peter went |
| Nancy | | Anne' social worker |
| Patsy | | Francis's uncle, barkeeper |
| Robbie | | Head of the history department at the school where Peter took a teaching position |
| Rohan, Drew, Matt | | Peter's
classmates at Dutch Kills Preparatory High School |
| Rosaleen | | George's girlfriend |
| Sara | | One of Kate's friends, lives in Westchester |
| Suzie | | Brian's partner in his later years |
