| 角色 | 饰演者介绍 |
| Prof. Hayman | Duncan Macrae |
| Dan McEntee | Joseph Tomelty |
| Sir Archibald Asher | Patrick Barr |
| Adolphus Hayman | 查尔斯·豪特瑞 |
| Ada Shore | Diane Hart |
| Sheltie | Robert Urquhart |
| Lord Carshennie | Edward Lexy |
| Nellie | Jacqueline Mackenzie |
| The Bedellus | Eric Woodburn |
| Lady Duffy | Molly Urquhart |
| BBC Commentator | Reginald Beckwith |
| Student (as Ronald Corbett) | 罗恩尼·柯贝特 |
| (uncredited) | Andrew Downey |
| (uncredited) | Archie Duncan |
| (uncredited) | Alastair Hunter |
| Scottish Announcer (uncredited) | Moultrie Kelsall |
| (uncredited) | Roddy McMillan |
| (uncredited) | Wendy Noel |
