Born in London, Ireland was the daughter of a wine importer. She began acting in the mid-1950s with bit parts in films including Simon and Laura (1955) and Three Men in a Boat (1956). In 1957, Ireland married actor David McCallum[1] after the couple met while working on the film Hell Drivers (1957). Later they appeared together in five episodes of The Man From U.N.C.L.E.: "The Quadripartite Affair" (season 1, episode 3, 1964), "The Giuoco Piano Affair" (season 1, episode 7, 1964), "The Tigers Are Coming Affair" (season 2, episode 8, 1965), "The Five Daughters Affair" (season 3, episodes 28 & 29, 1967). They had three sons, Paul, Valentine, and Jason (who was adopted). Jason McCallum died of a drug overdose in 1989, six months before Ireland's own death. McCallum and Ireland divorced in 1967. In 1968, Ireland married Charles Bronson. She had met him when he and McCallum were filming The Great Escape (1963) some years earlier. Together they had a daughter, Zuleika, and adopted a daughter, Katrina. They remained married until Ireland's death in 1990.