Carry On Doctor is a 1967 British comedy film, the 15th in the series of 31 Carry On films (1958–1992). It is the second in the series to have a medical theme. Frankie Howerd makes the first of his two appearances in the film series and stars alongside regulars Sid James, Kenneth Williams, Jim Dale, Charles Hawtrey, Joan Sims, Peter Butterworth, and Bernard Bresslaw. Hattie Jacques returns for the first time since Carry On Cabby four years earlier, while Barbara Windsor returns after her debut in Carry On Spying three years earlier. Carry On Doctor marks Anita Harris's second and final appearance in the series. The film was followed by Carry On Up the Khyber in 1968.