James Bolam, who played Jack Ford, and Susan Jameson, who plays Jessie Seaton, are married in real life. They have performed together in several TV productions and plays.
Jack Ford, when he first appears, is wearing the uniform of the Royal Northumberland Fusiliers, an infantry regiment that was based in the north east of England.
The main character of Lady Caroline plus the industrialist Colfax and Trade Unionist Les Mallow were played by two different actors/actresses across the four seasons of the show.
Edward Wilson and Roger Avon both appeared in The Likely Lads feature film in 1976 with James Bolam.
When season three ended in December 1978, there was a more than three year hiatus before the series returned for its final season, in March 1981.