| Gerry | Adams | Irish Republican politician active in Sinn Fein from the 1970s, in charge from 1983 to 2018 |
| Ned | Armstrong | Employee of Confidential Telephone |
| Anthony | Blane | Billy White's lawyer |
| Chief Inspector | Brennan | Duffy's superior, head of Carrickfergus squad |
| Mrs. | Bridewell | Another neighbor of Duffy's, 2 doors down |
| Bobby | Cameron | Neighbor of Duffy, officer in the terrorist group Ulster Freedom Fighters (division of the UDA) |
| Mrs. | Campbell | Duffy's attractive next-door neighbor |
| Dr. Laura | Cathcart | Police pathologist |
| Davey | Childers | RUC liaison at the Maze Prison |
| Shane | Davidson | Assistant to Billy White |
| | DeSloot | Forest ranger who found Lucy Moore's body |
| John | Doe | 1st murder victim |
| Peter | Evans | MI5 agent |
| Heather | Fitzgerald | Constable of the Carrickfergus station |
| Frankie | Hughes | Imprisoned IRA activist/hunger striker, died 5/12782 |
| | Jameson | Trainee police officer |
| Tommy | Little | 1st murder victim, occasional driver for Gerry Adams & Sinn Fein, and maybe more |
| Matty | McBride | Forensics officer |
| Sgt. Sean x | McCallister | Detective, Carrickfergus police squad leader. Catholic |
| Sgt. Alan | McCallister | Police officer in Duffy's Carrickfergus squad |
| Mrs. | McCawley | Helpful librarian at Carrick Library |
| Det. Constable | McCrabban | Senior police officer in Duffy's Carrickfergus squad, aka "Crabbie" |
| Raymond | McCreesh | IRA prisoner in the Maze on hunger strike, died on May 21, 1981 |
| Oscar | McDowell | Newsagent |
| Sammy | McGuinn | Duffy's barber, violinist with the Ulster Orchestra |
| Inspector | Mitchell | Brennan's deputy, runs RUC sub-station in Whitehead |
| Lucy O'Neill | Moore | Ex-wife of imprisoned IRA activist, missing for 6 months, found dead in Woodburn Forest outside Belfast |
| Seamus | Moore | Ex-husband of Lucy Moore, in the Maze for possessing a stolen shotgun, on hunger strike |
| Patsy | O'Hara | IRA prisoner in the Maze on hunger strike, died on May 21, 1981 |
| Claire | O'Neill | Lucy Moore's sister |
| Tony | O'Rourke | Editor, Sunday World newspaper |
| Dr. Ian | Paisley | Loyalist politician and Protestant religious leader from Northern Ireland, evangelical minister |
| Jim | Prentice | Police officer, manages informants for the group |
| Constable | Price | Junior police officer in Duffy's Carrickfergus squad, canine officer |
| Constables | Quinn & Davey | Police at scene of 1st murder |
| Bobby | Sands | Imprisoned IRA activist/hunger-striker, died 5/5/82 |
| Freddy | Scavanni | Sinn Fein press officer, associated with the IRA |
| George | Seawright | Unionist politician in Northern Ireland and loyalist paramilitary in the UVF (assassinated in 1987).
Councilor for the DUP. |
| Margaret | Tanner | Seamus Moore's mistress |
| Inspector | Todd | Special Branch |
| Billy | White | Protestant paramilitary, UVF divisional commander, suspected of several crimes. Tommy was going to see him night of his murder |
| Andrew | Young | 2nd murder victim, music teacher at Carrickfergus Grammar School, suspected homosexual |
| Adele | | Duffy's former girlfriend, schoolteacher |
| Carol | | Police station secretary |