The Fiend is a 1972 British horror film produced and directed by Robert Hartford-Davis and starring Ann Todd, Tony Beckley and Patrick Magee. The film is set against a background of religious fanaticism and, as with other films directed by Hartford-Davis, includes elements of the sexploitation genre of the early 1970s.

Dorothy Ann Todd was an English film, television and stage actress who achieved international fame when she starred in The Seventh Veil (1945). From 1949 to 1957 she was married to David Lean who directed her in The Passionate Friends (1949), Madeleine (1950), and The Sound Barrier (1952). She was a member of The Old Vic theatre company and in 1957 starred in a Broadway play. In her later years she wrote, produced and directed travel documentaries.