Imogen Hassall (25 August 1942 – 16 November 1980) was an English actress who appeared in 33 films during the 1960s and 1970s.

Hassall boarded and attended Elmhurst Ballet School, Camberley, 1952–1954 and the Royal Ballet School, White Lodge, Richmond Park, 1955–1958. Later in 1958 (aged 16), she studied in New York City and returned to live with family in the Vale of Health by Hampstead Heath, London. She continued her absorption of the theatre mode with study at the London Academy of Music and Dramatic Art 1960–1962, following which she joined the company of the Royal Shakespeare Company for one season. After enjoying an appearance in the William Douglas-Home comedy “The Reluctant Peer” at the Duchess Theatre in 1964, she appeared in British TV adventure series of the 1960s such as The Saint, The Avengers and The Persuaders! She played Tara in The Long Duel (1967) in her first significant film role. She gained further public notice as a dominant cave-girl in When Dinosaurs Ruled the Earth (1970) and played major roles in Carry On Loving and the cult horror film Incense for the Damned the same year. In 1973, she appeared in White Cargo alongside David Jason.

More info: https://en.wikipedia.org/wiki/Imogen_Hassall