| Cast list |
| Lewis McLeod | as | The Martian Voices in The Prequel |
| Richard Burton | as | George Herbert, The Journalist (archive sound) |
| Justin Hayward | as | The Sung Thought of The Journalist |
| Alexis James | as | The Artilleryman |
| Anna-Marie Wayne | as | Carrie - George Herbert's Fiancée |
| Chris Thompson | as | Humanity (voice) |
| Russell Watson | as | Parson Nathaniel |
| Tara Blaise | as | Beth - The Parson's Wife |
| Jerry Wayne | as | The Voices of NASA Control |
| Daniel Boys | as | Understudy |
| Hannah Stearne | as | Understudy |
| Hugh Burns | as | Blacksmoke band - guitar |
| Chris Spedding | as | Blacksmoke band - Electric guitar |
| Neil Angilley | as | Blacksmoke band - keyboards |
| Colin Good | as | Blacksmoke band - Keyboards |
