This episode was the last episode based on a novel by Caroline Graham, her final two Barnaby novels "A Place of Safety" and "A Ghost in the Machine" have never been adapted for television.
Tilly Blackwood plays Trixie Channing in this episode. She returns in episode 10.4, The Axeman Cometh (2007), in the role of Finola Harcourt.
Miles Anderson plays Guy Gamelin in this episode. He returns in episode 9.8, Last Year's Model (2006), in the role of Lance Woodrow.
Charles Kay plays Arno Gibbs in this episode. He returns in episode 9.3, Vixen's Run (2006), in the role of Henry York.
Susan Tracy plays Felicity Gamelin in this episode. She returns in episode 10.3, King's Crystal (2007), in the role of Hilary King.