James Warrior, who plays the bearded and overweight, and slightly clumsy detective Jellyneck, visibly picks his nose, and at one point, even eats it. Warrior provides the commentary introduction on the DVD, and was told to come up with quirks like this for the character. Even in the theatrical Sweeney 2, he continues to pick his nose.
The following actors from this episode later appeared with Dennis Waterman in Minder (1979). James Cosmo (Det. Sgt. Davy Freeth) appeared in Senior Citizen Caine (1984). Benjamin Whitrow (Det. Chief Supt. Braithwaite) appeared in Life in the Fast Food Lane (1985). Miranda Forbes (Maggie's Mother) appeared in Get Daley (1984). And Norman Lumsden (Sir Henry) appeared in Senior Citizen Caine (1984)
The following actors from this episode later appeared with Dennis Waterman in Stay Lucky (1989). James Cosmo (Det. Sgt. Davy Freeth) appeared in Hard Times, Hard Men (1991). And Alex Norton (Gibson) appeared in A1 Rain Dancer (1989)
First appearance of Detective Superintendent Braithwaite, played by Benjamin Whitrow. He appeared in 4 episodes. The last one being Latin Lady (1978). Whitrow later appeared with John Thaw in The Daughters of Cain (1996)
A character makes an instrument out of a water glass rim, that smooth crystalline sound, which is the main music score for Series Two's episode Chalk & Cheese.