Judith Amanda Geeson is an English film, stage, and television actress. She began her career primarily working on British television series, with a leading role on The Newcomers from 1965 to 1967, before making her major film debut in To Sir, with Love (1967). She starred in a range of films throughout the 1970s, from crime pictures to thriller and horror films, including The Executioner (1970), Fear in the Night (1972), Brannigan (1975) and The Eagle Has Landed (1976). She played heiress Caroline Penvenen from 1975-1977 in the BBC series Poldark, from the Winston Graham novels.

The Newcomers was a late 1960s BBC soap opera which dealt with the subject of a London family, the Coopers, who moved to a housing estate in the fictional country town of Angleton. It was broadcast in bi-weekly half-hour episodes from October 1965 until November 1969. It was initially produced by Verity Lambert.