Jimmy Harris made his first appearance during the spin-off Pat and Mo (2004). He is portrayed by Alex King.
When Jimmy was ill, one night he was in some much pain that Mo Harris got Gladise from next door to keep any eye on him and Mo got a night bus down to piccadilly and she hung around the all night chemist. She then saw some junkies that came out that had just picked up their script. Mo ask them if they would sell them some, they told her how much to use and that night Jimmy had the best night sleep in weeks.