<Li> Bill Owen as George Chambers, Thelma's father </Li> <Li> Joan Hickson (Series 1) and Noel Dyson (Series 2) as Mrs Chambers, Thelma's mother (Series 1) </Li> <Li> Anita Carey as Susan Chambers, Thelma's sister, who lives in Toronto, Canada with her accountant fiancé Peter </Li> <Li> Olive Milbourne as Edith Collier, mother of Terry, Audrey and Linda </Li>

Who played thelma's sister in the likely lads