text: Kenneth Cope (born 1931) (3) had major roles in both At Your Convenience, where he played a troublemaking shop steward and a rival for the romantic lead; in Matron he played a more sympathetic role, as a crook's son forced to go undercover as a nurse to case a hospital.  However, his first Carry On appearance was as a walk-on actor playing a sailor in Jack.
  Bernard Cribbins  (1928–2022) (3) played lead roles in Jack and Spying. Returned for Columbus.
  Shirley Eaton (born 1937) (3) played the original female lead in Sergeant & Nurse and returned for a smaller role in Constable.
  Sally Geeson (born 1950) (3) started her Carry On career, aged 11, in an uncredited cameo in Regardless. She returned in the large supporting role of Lily in Abroad, 11 years later, following it up the following year with a cameo appearance in Girls.  She starred on TV alongside Sid James and Patsy Rowlands in Bless This House, joining them in the film version produced by Peter Rogers.
  Renée Houston (1902–1980) (3) appeared in small roles in Cabby and Spying before returning seven years later for a more substantial role in Convenience.  She also accepted the role of Mrs Dukes in Girls, but had to withdraw due to ill health.