Series episode
| David James Elliott | ... | Lt. Cmdr. Harmon 'Harm' Rabb - Jr. |
| Catherine Bell | ... | Maj. Sarah 'Mac' MacKenzie |
| Patrick Labyorteaux | ... | Lt. Bud Roberts - Jr. |
| John M. Jackson | ... | Adm. Albert Jethro 'A.J.' Chegwidden |
| Nick Ahlgrim | ... | Featured |
| Mark Lindsay Chapman | ... | RUC Inspector Vincent Hutchinson |
| Shay Dunphy | ... | Ronald Smythe |
| Michael Enright | ... | Rafferty |
| Deborah Fallender | ... | Tea Woman |
| Susan Gibney | ... | Lieutenant Linda Nivens |
| Colin Hay | ... | Miles |
| James Lancaster | ... | Jonathan Graham |
| Les Lannom | ... | Dart Thrower |
| Sean Lawlor | ... | Jack Moore |
| Lennie Loftin | ... | Lab Technician |
| Britt Morrow | ... | Laura Bissett |
| Timothy Starks | ... | Marine Corporal |
| Andrew Steel | ... | Policeman |
| Harry Van Gorkum | ... | Lorcan Barnes |
| John Pycior | ... | Pub Patron |
| Alan J. Levi | ... | Direction |
| Jack Orman | ... | Script |