The case takes an interesting turn when the bodies are identified as brothers who disappeared after a police questioning during the Troubles.
| Name | Type | Role | |
|---|---|---|---|
| Stephen Brady | Writer | ||
| Ciarán McMenamin | Guest Star | Joe Galvin | |
| Kathy Kiera Clarke | Guest Star | Jenifer Gaghan | |
| Annie Farr | Guest Star | Doctor | |
| Brid Arnstein | Guest Star | Sam Ryan Aged 13 | |
| Stella Madden | Guest Star | Katy Quinn | |
| Britta Smith | Guest Star | Cath Shanley | |
| Paul Gilmore | Guest Star | William Ryan | |
| Martin Carroll | Guest Star | Records Officer | |
| Anne Bird | Guest Star | Nurse | |
| Madaleine Bassett | Guest Star | Sam Ryan Aged 9 | |
| Yvonne O'Grady | Guest Star | Vivian Steen | |
| Daragh O'Malley | Guest Star | Walter Shanley | |
| Des McAleer | Guest Star | George Nevin | |
| Marianne March | Guest Star | Valerie Nevin | |
| Ashley Pearce | Director |