| 1 | Mahony | | Man who sees Dead People.
Aka: Francis Sweeney. |
| | Mr. | Adair | A Pharmacy Store Owner. |
| | Mr. | Farr | A Clothes Store Owner. |
| | Mr. | Gibbons | A Solicitor / Owner of Gibbons & McGrath Solicitors. |
| | Mr. | McGrath | A Solicitor / Co-Owner of Mr. Gibbons. |
| | Tadhg | Kerrigan | Bar Owner in Mulderrig. |
| | Shauna | Burke | Landlady at Rathmore House. |
| 2 | Mrs. Merle | Cauley | An Old Actress / A woman who helps Mahony investigate. |
| | Jack | Brophy | A Police Sergeant in Mulderrig. |
| | Gerard | McNamara | The Reverend at St. Anthony. |
| | Jim | Hennessy | A priest in Mulderrig / Orla Sweeney's Friend. |
| | Sister | Veronica | Nun / Deceased. |
| | Sister Mary | Margaret | Finds Francis Sweeney in front of St. Anthony's Orphanage. |
| | Sister | Dymphna | Sister Mary Margaret's Co-Nun at St. Anthony's. |
| | Orla | Sweeney | Mahony's Mother / Deceased. |
| | Paddy | | A regular in Tadhg Kerrigan's Bar / Ghost. |
| | Annie | Farrelly | A Pretty Widow who lives in Rathmore House. |
| | | | Bill Hailey - A Rock Band. |
| 3 | Bridget | Doosey | Mrs. Merle Cauley's Dresser / A Former Nun. |
| 4 | Margaret Ida | Munelly | Roisin Munelly's daughter / A dead girl Mahony met at the Forest. |
| | Eugene | Quinn | A priest in Mulderrig. |
| | Johnnie | | Mrs. Merle Cauley's Dead Fiance. |
| | Miss | Marple | A fictional character in Agatha Christie's Novel. |
| 5 | Marie | Gaughan | Vendor in Mulderrig's General Store. |
| | Mrs. Mary | Lavelle | Shauna Burke's Former Helper. |
| | Teasie | Lavelle | Mrs. Mary Lavelle's Daughter. |
| | Roisin | Munelly | Orla Sweeney's Friend / Margaret Ida Munelly's Mother. |
| 7 | Tom | Bogey | A Mysterious man who lives in the forest of Mulderrig. |
| 8 | Fidelma | Mulhearne | A Schoolmistress / Deceased. |
| | Mrs. | Moran | Mrs. Cauley's friend. |
| | Pegeen | Mike | Protagonist in the Playboy of The Western World. |
| | Pat | Nolan | One of the Villagers in Mulderrig with Titanic ears. |
| 9 | Michael J. | Flaherty | Pegeen Mike's Father. |
| 10 | Dr. Maurice | McNulty | Mrs. Merle Cauley's Doctor. |
| 11 | Jimmy | Nylon | Was seen walking with Orla in the forest when she disappeared. |
| 13 | | | St. Florian - The Patron Saint for Chimneys. |
| | Martin | Doyle | Mahony's Friend. |
| | Mother | Whorley | A ghost who haunts the Dormitory every night. |
| | Mr. | Mullins | A ghost. |
| 14 | Michael | Hopper | Father Quinn's Assistant. |
| | Agatha | Cristie | A Famous Mystery Author. |
| 16 | Patrick James | Carty | A Man in the Graveyard. |
| | Joseph | Raftery | A Man in the Graveyard. |
| | Joe | | A Man in the Graveyard. |
| 18 | Ruth | Quigley | Mr. Quigley's Wife. |
| | Mr. | Quigley | Ruth Quigley's Husband. |
| | Eamon | | Margaret Ida Munelly's Uncle. |
| 19 | Desmond | Burke | Shauna Burke's Father / Owner of Rathmore House. |
| | Father | McCluskey | The Priest at St. Anthony's Orphanage. |
| | Maria | Consuelo | A Mother Nun in St. Anthony's Orphanage. |
| 21 | Dorothy | | A Dead Girl that Orla Sweeney met. |
| | Mrs. | McHale | Neighbor of Orla Sweeney. |
| | Mr. | McHale | Mrs. McHale's murdered husband. |
| | Benny | Ganley | A Helper in St. Patrick's Church. |
| 28 | Noel | Munelly | Roisin Munelly's Husband / Margaret Ida Munelly's Father. |
| 35 | Mrs. | Kiernan | Annie Farelly's Employer. |
| 37 | Mary | Waldron | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Cathal | Doyle | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Maggie | Hoban | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Kathleen | Irwin | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Michale | Joyce | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Bridget | Lawless | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Maura | Cusack | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| | Theresa | Walsh | The Dead Pensioner / One of the Villagers in Mulderrig in 1948. |
| 38 | Thomas | Sweeney | Orla Sweeney's Father. |
| 43 | Mr. | Kelly | A Police Inspector in Westport. |