Carry On Spying is a 1964 film, the ninth in the series of Carry On films to be made. It marks Barbara Windsor's first appearance in the series. Series regulars Kenneth Williams, Charles Hawtrey and Jim Dale are present. Bernard Cribbins makes the second of his three Carry On appearances (although it would be 28 years before he returned in Carry On Columbus). Eric Barker appears for his third entry (his final appearance would be in Carry On Emmannuelle 14 years later). Dilys Laye returns after her series debut in Carry On Cruising. This is the last film of the series to be shown in black and white.