Alfred and Martha Kane take a train ride into the countryside on an assignment, while tragedy strikes in London.
| Name | Type | Role | |
|---|---|---|---|
| Bruno Heller | Writer | ||
| Naomi Morris | Guest Star | Nervous Girl | |
| Jennie Goossens | Guest Star | Mrs Spicer | |
| Greg Haiste | Guest Star | Newsreader | |
| Maggie Daniels | Guest Star | Mrs Darkness | |
| Katie Birtill | Guest Star | Glamorous Woman | |
| Steve Edwin | Guest Star | Mr Spicer | |
| Emma Corrin | Guest Star | Esme Winikus | |
| Alexander Perkins | Guest Star | Bob - Grey Suit 1 | |
| Paul McEwan | Guest Star | Captain Armitage | |
| Samuel Blenkin | Guest Star | Jack Wild | |
| Anna Chancellor | Guest Star | Frances Gaunt | |
| Sorel Johnson | Guest Star | Joan - Grey Suit 2 | |
| Paul Brennen | Guest Star | Brewster | |
| Travis Oliver | Guest Star | Man in Evening Dress | |
| Simon Day | Guest Star | Sid Onslow | |
| Leilah Isaac | Guest Star | Nurse | |
| Charlie Woodward | Guest Star | Captain Curzon | |
| David Yu | Guest Star | Kenneth | |
| Ramon Tikaram | Guest Star | Detective Inspector Aziz | |
| China Moo-Young | Director |