Rose Mellors, played by Ann Lynn and her Henchman Jack, played by Tony Selby, appear again in Diamonds Are a Girl's Worst Enemy (1980)
Tony Selby (Jack) later appeared in Days of Fines and Closures (1989) as Muldoon. He previously appeared with Dennis Waterman in Queen's Pawn (1975). And he again appeared with Dennis Waterman in Meat Is Murder (2009)
Kenneth Cope (Albert Stubbs) later appeared in Waiting for Goddard (1985) as Scooter and in Bring Me the Head of Arthur Daley (1994) as Phelan.
Tony Allen has an uncredited role as 'Removal Man who hides Arthur's Mini in his Van'. He previously appeared with Dennis Waterman in The Sweeney (1975) as Bill the Driver in 40 episodes and both films.
First episode of Minder (1979) written by Paul Wheeler. He wrote another 3 episodes. The last one being The Son Also Rises (1982)