| Mark | 杰米·布莱克利
 | |
| John | 托比·瑞格波
 | |
| Detective Inspector Sarah Clayton | 琼安·弗洛加特
 | |
| Janet | 莉姿·怀特
 | |
| Rachel | 杰美·温斯顿
 | |
| Mark's Dad | Mark Womack | |
| Zoey | Amy Wren | |
| Mark's Mum | 路易斯·德拉米
 | |
| Ryan Robins | James Burrows | |
| Kelly | 斯蒂芬妮·列尼达斯
 | |
| Prosecutor | Jonathan Barlow | |
| Judge | Vincent Brimble | |
| Defence Barrister | Priyanga Elan | |
| Jack | Scott Chambers | |
| Chief Inspector Brian Martin | Roderic Culver | |
| Guard | Raymond Daniel Davies | |
| Teacher | Charles De'Ath | |
| Sophie / Girl On Bench | Hannah Douglas | |
| Crying Baby | Jack Henry Douglas | |
| Shaved Head Guy's Daughter | Missy Douglas | |
| Checkout Girl | Maddy Hill | |
| Kevin McNeil | 明格斯·约翰斯顿
 | |
| Henry | Jack Lowden | |
| Frank | Jay McDonald | |
| PC Taylor | Johnny Palmiero | |
| John's Step Dad | Quill Roberts | |
| Shaved Head Guy / Kyle | Aiden Smith | |
| Careers Advisor | Neil Stewart | |
| Nurse | Lenore Thomas | |
| Defence Barrister | Richard Trinder | |
| PE Teacher | Anthony Warren | |
| History Teacher | Brigid Zengeni | |
