Career
Her best-known television roles are as Lydia in the science fiction television series V: The Series, and as Lieutenant Joanna Parisi on the third season of the series Riptide. Her best-known film cr is as Jeanine Pettibone in This Is Spinal Tap (1984).
Chadwick made television guest appearances on Magnum, Philippine Islands, The A-Team, and Matlock, and played Doctor Alice Davis on the short-lived television series, Going to Extremes.
She also provided the voice of Doctor Sheila Thatcher in the video game Star Trek: Away Team.