John Collin (Parish) previously appeared with John Thaw in Misfire (1964), A Place of Refuge (1965) and Dead Man's Chest (1965)
This edition was 6th in the charts with viewing figures of 7.7 million under the JICTAR Ratings System.
Warren Clarke (Danny Keever) later appeared with Dennis Waterman in Bring Back My Barny to Me (1990). He later became best known for playing Detective Superintendent Andy Dalziel in Dalziel and Pascoe (1996) from 1996-2007.