Butler household is forever losing money and regularly getting the electricity cut off. Mabel is frequently caught up in arguments between Arthur, Olive and Stan but manages to retain a sense of maternal order over them. She is moral, believing in the sanctity of marriage and family, as well as criticising licentious behaviour in women. Despite her strong moral compass however, she sometimes turns a blind eye to Stan's equally sultry ways and near-criminal high jinks at his job. Anna Karen as Olive Rudge, Stan's sister. Olive is always being criticised by her husband Arthur, even though she helps her mum with household jobs and frequently helps Stan with the decorating. Olive has twice been a clippie at the bus depot, both times being unsuccessful. She is always wanting "an early night" with Arthur, much to his displeasure. Michael Robbins as Arthur Rudge, Stan's brother-in-law. Somewhat aloof and stuck-up, he frequently resists Olive's intimate advances. His hospital operation is a frequent source of ridicule from Stan and Jack. Although the nature of the procedure is never disclosed, it is implied to have been a vasectomy or a hernia. Arthur is always tampering with his motorbike, which usually falls apart. Arthur has a mother (played by Gillian Lind) and a younger sister called Linda (played by Helen Fraser) who both appeared in the episode "Boxing Day Social". Bob Grant as Jack Harper, Stan's scheming, workshy conductor and best friend, who also happens to be his next-door neighbour (although throughout the series he regularly attempts to discredit Stan by underhanded means, such as innuendo, accusation or the like, and steals Stan's girlfriends on several occasions). He and Stan are always getting into trouble and getting reprimanded by Inspector Blake. Whether it is tampering with radio controls, putting "diversion" road signs in the wrong places or going on dates with the buxom clippies, they are always getting into scrapes. Jack is also the shop steward of the bus depot, and frequently abuses his position to thwart Blakey's schemes, usually with the catchphrase "As shop steward I am here to tell you.....". Stephen Lewis as Cyril "Blakey" Blake – the inspector at the bus depot. Whenever there is a "brilliant idea" at the bus depot, it is usually Blakey's. These are usually elaborate schemes to temper Stan's and Jack's frequent insubordination, or to entrap them in their misadventures in a bid to get them