Bill Moody (Man with Car) later appeared in I'll Never Forget Whats'ername (1993) as Fast Eddie. He also later appeared with Dennis Waterman in Trust Me (2005)
Jonathan Kydd (Ernie) previously appeared in Broken Arrow (1982) as Len. He later appeared in Minder on the Orient Express (1985) as Van Driver.
Patrick Mower (Clive Cosgrove) previously appeared with Dennis Waterman in School for Unclaimed Girls (1969). He also appeared with him in Golden Fleece (1975) and Trojan Bus (1975) as Colin McGruder. George Layton who played Des the Mechanic in 6 episodes of Minder from 1979-1982, played Ray Stackpole, the accomplice of Patrick Mower's character in these 2 episodes of The Sweeney. Mower later became best known for playing Rodney Blackstock in Emmerdale Farm (1972) from 2000-present.
Gary Holton played the character Barry. Barry appeared in Auf Weidersein Pet, played by Tim Spall.