June Chadwick (born 30 November 1951, Warwickshire) is an English film and television actress. Her best-known television roles are as Lydia in the science fiction TV series V: The Series, and as Lt. Joanna Parisi on the third season of the series Riptide.Her best-known film credit is as Jeanine Pettibone in This Is Spinal Tap (1984).