Harry is a non-canonical character who was created for the TV adaptation of The Crackler in LWT's Agatha Christie's Partners in Crime. He is the barman at the Python Club where a large amount of the action takes place. Tommy and Tuppence are investigating a gang of currency counterfeiters who are believed to be operating from the club and Harry is one of their suspects. At one point, Tommy gives Harry a large note and gets change back and he discovers that some of the notes are forged. In another scene, Tuppence tries to get some change from Major Laidlaw (another suspect), but Harry spoils this by offering to give her change instead.
Harry was played in the film by Stan Pretty.