| 角色 | 饰演者 | 角色介绍 |
| William Wilberforce | 艾恩·格拉法德 | |
| John Newton | 阿尔伯特·芬尼 | |
| Barbara Wilberforce | 萝玛拉·嘉瑞 | |
| Thomas Clarkson | 卢夫斯·塞维尔 | |
| Heckler | 亚力克斯·布莱克 | |
| The Boat Servant | Martin Nigel Davey | |
| Lord Charles Fox | 迈克尔·刚本 | |
| Clerk | Richard Bailey | |
| Member of Parliament | Sean Bloc | |
| James Stephen | 史蒂芬·坎贝尔·摩尔 | |
| Clerk | Robert Roy Collins | |
| Pitt the Younger | 本尼迪克特·康伯巴奇 | |
| William Dolben | Nicholas Day | |
| Member of Parliament | Jazz Dhiman | |
| Henry Thornton | Nicholas Farrell | |
| Hannah More | Georgie Glen | |
| Parliament Messanger | Derek Hagen | |
| Lord Tarleton | 塞伦·希德 | |
| Lord Camden | David Hunt | |
| Duke of Clarence | 托比·琼斯 | |
| Physician | Tom Knight | |
| Marianne Thornton | 斯薇斯特·L·唐兹尔 | |
| Oloudaqh Equiano | 尤索·恩多 | |
| Lord Dundas | 比尔·帕特森 | |
| Speaker - Parliament | Richard Ridings | |
| Parliamentary Clerk | Alwyn Scott | |
| Member Of Parliament | Aaron Sweeney | |
| Richard the Butler | Jeremy Swift | |
| Member of Parliament | Nick Thomas-Webster | |
| Member of Parliament | Andrew Whipp | |
| Parliamentary Clerk | Adam Woodroffe |
