Daniel Hill, who plays Martin Reid, is best known for playing Harvey Bains in the comedy series Waiting for God (1990).
Selina Cadell plays Eleanor Crouch in this episode. She previously played the role of Phyllis Cadell in episode 1.1, The Killings at Badger's Drift (1997).
Jones tells Barnaby that Tomlin's car is found at Waterloo Station and they think he's taken the Eurostar to Paris. This episode aired in May 2008, and at that time the Eurostar was no longer leaving from Waterloo; it was leaving from St. Pancras Station.
Debbie Chazen plays Gemma Platt in this episode. She previously played the role of Anna Santarosa in episode 2.2, Strangler's Wood (1999).
Serena Gordon plays Christina Finleyson in this episode. She previously played the role of Ginny Sharp in episode 5.1, Market for Murder (2002).