Judith Amanda "Judy" Geeson (born 10 September 1948) is an English film, stage, and television actress. She began her career primarily working on British television series, before making her major film debut in To Sir, with Love (1967). She later would star 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).
In her later career, Geeson returned to television, playing the recurring character of Maggie Conway on the American series Mad About You from 1992 until 1999, as well as a recurring role on Gilmore Girls in 2002. In 2012, she appeared in Rob Zombie's The Lords of Salem.
Geeson was born in Arundel, Sussex. She came from a middle-class family; her father edited the National Coal Board magazine. Her sister, Sally Geeson, also an actress, is known for her roles in British television sitcoms of the 1970s. Geeson attended Corona Stage Academy, making her stage debut in 1957.
Geeson's first major film appearance was in To Sir, with Love (1967) alongside Sidney Poitier and pop singer Lulu, and Berserk! (also 1967), co-starring Joan Crawford. She followed these films with the comedy Here We Go Round the Mulberry Bush (1968). Geeson became well known as a result of a regular role in the BBC early-evening soap opera, The Newcomers. She also had a major role in the mid-70s costume drama Poldark, as Caroline Penvenen (later Caroline Enys).
Geeson's other films include Prudence and the Pill (1968), Three Into Two Won't Go (1969), 10 Rillington Place (1970), Doomwatch (1972), Brannigan (1975; starring John Wayne, with whom she enjoyed working) and The Eagle Has Landed (1976). In the TV series Danger UXB (1979), she played the female lead, Susan Mount, opposite Anthony Andrews. She also had the lead role of Fulvia in the science-fiction series Star Maidens (1976).
In 1984, Geeson left London for Los Angeles, California, where she decided to stay. Among other roles, she appeared regularly in the American sitcom Mad About You as the hostile neighbour, Maggie Conway. She also played the role of Sandrine in the Star Trek: Voyager episodes "The Cloud" and "Twisted".
Having appeared in a number of horror films during the 1970s and 1980s, including Fear in the Night (1972), A Candle for the Devil (1973), Dominique (1978) and Inseminoid (1981), Geeson returned to the horror genre in The Lords of Salem (2012), directed by Rob Zombie. The film marked a return to acting following a nine-year absence. She portrayed Sister Dragon in Rob Zombie's slasher film 31 which was released in 2015.
In the 1970s, Geeson lived with set designer Sean Kenny, until his death in 1973. Geeson was married to actor Kristoffer Tabori from 1985 until their divorce in 1989.