Kate O'Mara (born Frances Meredith Carroll) was an English film, stage and television actress, and writer. O'Mara made her stage debut in a 1963 production of The Merchant of Venice. Her other stage roles included Elvira in Blithe Spirit (1974), Lady Macbeth in Macbeth (1982), Cleopatra in Antony & Cleopatra (1982), Goneril in King Lear (1987) and Marlene Dietrich in Lunch with Marlene (2008). In the cinema, O'Mara acted in two 1970 Hammer Horror films: The Vampire Lovers and The Horror of Frankenstein. On BBC television, she had regular roles in The Brothers (1975–1976), Triangle (1981–1982) and Howards' Way (1989–1990), and portrayed Doctor Who villain the Rani three times (1985–1993). She also appeared as Jackie Stone in two episodes of the sitcom Absolutely Fabulous (1995–2003). On American television, she played Caress Morell, the scheming sister of Alexis Colby in the primetime soap opera Dynasty (1986).