| 角色 | 饰演者介绍 |
| Frances | Carly McKinnon |
| Gregory Underwood | John Gordon Sinclair |
| Headmaster | John Murtagh |
| Douglas | Hugh McCue |
| Fraser Rowan | 多格雷·斯科特 |
| Dimitri | Martin Schwab |
| Bel | 玛利亚·多耶·肯尼迪 |
| Norman (teacher) | 亚历山大·马特恩 |
| Courier | William Harkness |
| Bus driver | Albert Coulson |
| American executive | Paul Birchard |
| Asian executive | Simon Huh |
| Jan | 道恩·斯蒂尔 |
| Jon | 凯文·安德森 |
| Maddy Underwood | Fiona Bell |
| Italian restauranteur | Constanzo Cacace |
| Mr. McCance | 卡瑞·刘易斯 |
| Headmaster's secretary | Anne Kidd |
| Detective Gorrie | Matt Costello |
| Detective Ritchie | Jane Stabler |
| Assistant headmaster | Stewart Preston |
| Joyce | Anne Marie Timoney |
| Policeman | Dougie Robertson |
| Deere (government official) | Jonathan Hackett |
| Telfor (government official) | Bruce Byron |
| Minicab driver | Steven Clelland |
| Rowan's bodyguard | Marc Caraplet |
| Rowan's bodyguard | Jim Creighton |
| Bel's neighbour | Sadie Miller |
| Rowan's van driver | Douglas Robertson |
| Rowan's van driver | Michael O'Brien |
| Greg's pupil | Karen Sinclair |
| Greg's pupil | Amanda Malcolm |
| Greg's pupil | Alex Reape |
| Greg's pupil | Stephen Duguid |
