Sally Ann Howes. Sally Ann Howes was 18 in My Sister and I as 'Robina Adams'.
Dermot Walsh. Dermot Walsh was 23 in My Sister and I as 'Graham Forbes'.
Martita Hunt. Martita Hunt was 48 in My Sister and I as 'Mrs. Camelot'.
Barbara Mullen. Barbara Mullen was 34 in My Sister and I as 'Hypatia Foley'.
Patrick Holt. Patrick Holt was 36 in My Sister and I as 'Roger Crisp'.
Hazel Court. Hazel Court was 22 in My Sister and I as 'Helena Forsythe'.
Diana Dors. Diana Dors was 16 in My Sister and I as 'Dreary Girl'.
Harold Huth. Harold Huth was 56 in My Sister and I as 'Director'
Michael Medwin. Michael Medwin was 25 in My Sister and I as 'Writer'
Robert Westerby. Robert Westerby was 39 in My Sister and I as 'Writer'Joan Rees. Joan Rees was 24 in My Sister and I as 'Writer'A.R. Rawlinson. A.R. Rawlinson was 53 in My Sister and I as 'Writer'