Red Rock Episode #4.1 (2015– ) Online
- Original Title :
- Episode #4.1
- Genre :
- TV Episode / Crime / Drama
- Year :
- 2015–
- Directror :
- Ronan Burke
- Cast :
- Valerie O'Connor,Patrick Ryan,David Crowley
- Writer :
- Kim Revill
- Type :
- TV Episode
- Time :
- 21min
- Rating :
- 6.6/10
The identity of Brian McGonigle's killer is revealed in the season opener.
| Episode cast overview: | |||
 | Valerie O'Connor | - | Detective Sergeant Nikki Grogan |
 | Patrick Ryan | - | Garda Paudge Brennan |
 | David Crowley | - | Garda Sean Holden |
| Chris Newman | - | Garda Rory Walsh |
 | Sean Mahon | - | Brian McGonigle |
 | Darragh O'Toole | - | Conor Tyrell |
 | Ann Skelly | - | Rachel Reid |
 | Anthony Brophy | - | Liam Reid |
 | Roisin O'Donovan | - | Niamh Reid |
| Andrea Irvine | - | Garda Det. Angela Tyrell |
| Jane McGrath | - | Garda Sharon Cleere |
| Ronan Graham | - | Mick Moran |
 | Liam Carney | - | Tommy Tyrell |
| Caroline Rothwell | - | Ciara O'Hanlon |