The Red Lion in little missenden Buckinghamshire which doubles for the signalman in this episode has featured in four episodes "avenging Angel", "Talking to the dead", "Who killed cock Robin?" And this one.
Pam Ferris visits a Donkey Sanctuary shop while filming Rosemary & Thyme - episode The Cup of Silence.
Adrian Rawlins and Pam Ferris both appeared in the Harry Potter franchise. Rawlins as James Potter and Ferris as Aunt Marge Dursley.
Adrian Rawlins plays David Orchard in this episode. He previously played the role of Adam Keyne in episode 4.6, Tainted Fruit (2001).