| Terence |
Andrews | Developer from Futura. |
| Sean |
Callaghan | Archaeologist. Aka: Macker. |
| Simon |
Cameron | Dancing academy owner. |
| Mrs. |
Carmichael | Audrey's mother. |
| Marianne |
Casey | Katy's best friend. |
| Maurice |
Cleary | Land owner. |
| Mary Therese |
Cory | Angela's next-door neighbor. |
| Tom |
Costello | Ryan's resident grizzled veteran. |
| Karen |
Daly | Rosalind's friend. |
| Katharine |
Devlin | Victim. Aka: Katy. |
| Jonathan |
Devlin | Katy's father. |
| Jessica |
Devlin | Katy's sister. |
| Margaret |
Devlin | Katy's mother. |
| Rosalind |
Devlin | Katy's older sister. |
| Damien |
Donnelly | Hunt's associate. |
| Amelia |
Earhart | American aviator. |
| Beardy |
Eddie | Homeless man Wayne beat. |
| Peter |
Falk | Detective on Rob's case. |
| Pamela |
Fitzgerald | Witness. |
| Claire |
Gallagher | The girl who used to hang out with Jonathan's group. |
| Marie |
Gallagher | Claire's mother. |
| Mark |
Hanly | Hunt's associate. |
| Ian |
Hunt | Site director. |
| Melanie |
Jackson | Girl who found the murdered body. Aka: Mel. |
| Philomena |
Kavanagh | Murdered. |
| Michael |
Kiely | Journalist. |
| Detective |
Kiernan | Lead detective on Jonathan's case. |
| Willy |
Little | Rob's childhood acquaintance. |
| Cassie |
Maddox | Ryan's partner. |
| Orla |
Manahan | News reporter. |
| Detective |
McCabe | Kiernan's partner. |
| Ken |
McClintock | The boy behind Dynamo. |
| Elisabeth |
McGinnis | Katy's best friend. |
| Mad |
Mick | The local nutter. |
| Sophie |
Miller | Ryan's favorite crime-scene tech. |
| Cathal |
Mills | Jonathan's childhood friend. |
| Concepts |
Mills | Cathal's father. |
| Christina |
Murphy | Katy's best friend. |
| George |
O'Donovan | Jamie's father; Dublin solicitor. |
| Sam |
O'Neill | Ryan's colleague; O'Neill's nephew. |
| Redmond |
O'Neill | Sam's uncle; politician. |
| Sean |
Paul | Peter's brother. |
| Conor |
Roche | Developer from Global. |
| Germaine Elinor |
Rowan | Ryan's childhood friend; kidnapped. Aka: Jamie. |
| Alicia |
Rowan | Jamie's mother. |
| Adam Robert |
Ryan | Protagonist. |
| John |
Ryan | Ryan's father. |
| Peter Joseph |
Savage | Ryan's childhood friend; kidnapped. |
| Angela |
Savage | Peter's mother. |
| Sandra |
Scully | Girl Ryan saw in the woods; girl Jonathan liked. |
| Shane |
Waters | Jonathan's childhood friend. |
| Aidee |
Watkins | The girl who saw Ryan fall. |
| Groundsweeper |
Willy | Ryan's worm. |
| Anna |
| The girl Ryan met. |
| Audrey |
| Tara's friend. |
| Bernadette |
| Squad administrator. |
| Carl |
| Father of the pedophile's victim. |
| Charlie |
| Ryan's boarding mate friend. |
| Cillian |
| Anna's boyfriend. |
| Cooper |
| Forensic pathologist. |
| Corry |
| New floater. |
| Dealer Boy |
| Cassie's former dealer. |
| Dolores |
| Terrence's ex-wife. |
| Gemma |
| Ryan's former friend. |
| Heather |
| Ryan's neighbor. |
| Helen |
| Crime-scene tech. |
| Hull |
| Ryan's childhood acquaintance. |
| Jackie |
| The suspect's girlfriend. |
| Macker |
| Archaeologist. Aka: Sean Callaghan. |
| MacSharry |
| The prosecutor. |
| McCann |
| Quigley's new partner. |
| Metallica |
| The boy Sandra was kissing. |
| O'Gorman |
| One of the police officers. |
| O'Kelly |
| Ryan's superintendent. |
| Quigley |
| One of Ryan's squad members. |
| Sweeney |
| O'Gorman's partner. |
| Tara |
| Michael's sister. |
| Valerie |
| Katy's cousin. |
| Vera |
| Katy's aunt. |
| Wayne |
| A junkie. |
