The final TV appearance by Martin Cookson.
The last storyline prior to Warren Clarke taking over producer or director roles as well as being the leading actor.
The second and final appearance by Michael Bell playing a different character in each story.
Jo-Anne Stockham returns as Novello after a 2 episode absence.
Just the second episode to date not to feature Susannah Corbett. The first was s3e2 (Child's Play).