Terry. DI Norton's subsequent comments were scathing. Although Norton's appearances were always brief, they demonstrated the personal nature of Chisholm's and Rycott's campaigns. In the Series 6 episode "From Fulham with Love" Norton appears for less than a minute, but spends that entire appearance denouncing Chisholm for his "personal vendetta against Arthur Daley". In the feature-length episode "An Officer and a Car Salesman" that preceded series 7, Chisholm was written out (he was seen to have taken a job as a security officer), and Jones was promoted to DS. Although he took over the probing of Arthur's plots, he was less hell-bent on nabbing him, finding most of Arthur's schemes humorous. New police officers appeared from Series 8: DS Michael Morley; (Nicholas Day). DS Michael Morley was also a highly driven officer, but tempered with a sense of humour that Chisholm lacked. He also failed to make charges against Arthur stand up in court. His assistants were: DC Park; (Stephen Tompkinson). DC Johnny Park was openly amused at Arthur and Ray's activities, but knew his duty; as did DC Field; (Jonty Stephens). DC Field was a conscientious officer but he occasionally did Arthur a "good turn"; DS Rogerson; (James Warrior). DS Richard Rogerson was a loyal and tenacious "old school" officer. On occasion he even assisted Ray to prove that Arthur was innocent of police charges. Other characters Arthur's world was mainly populated by petty crooks, fellow minders, dropouts, "tea leaves", "fences" and those happy to quickly turn over dodgy goods, usually (but not always) without violence. Characters that Arthur would interact with regarding his various dodgy dealings included such characters, often memorably named, as fellow car dealer Wally West, Jewish travel agent-cum-undertaker Monty Wiseman, "Dirty 'Arry", eternally glum "Mournful Morris", drunk former surgeon "Incapable", "Self Inflicted Sid", "Freddy, the Fly", "Scotch Harry", "Maltese Tony", "Smudger Harris", a forger of variable talent, unrelated man-with-a-van "Pongo Harris", "Dipso Pete" and "Oily Wragg" (played by Pete Postlethwaite). Recurring characters included Des (George Layton) (series 1–3), a back-street mechanic friend of Terry's who was friendly and likable, but not beyond car theft when called for; professional gambler Maurice Michaelson (Anthony Valentine) (series 1–2), kind-hearted stripper Debbie Mitchell (Diana Malin) and air stewardess Penny (Gennie Nevinson), both recurring girlfriends of Terry's; Ray Winstone as mechanic Arnie (series 4–7, conceived as a replacement for George Layton's Des, and as dim as Des was sharp); and