Miley graduated from St. Jean Baptiste High School in 1959 where she was involved with theatre, and from St. John's University with a degree in Literature in 1963. In 1975 she completed a Masters in Humanities at NYU.
Miley has guest starred on several television series including Boy Meets World, Liv and Maddie, NYPD Blue, Big Love, Monk, Mike & Molly and Six Feet Under. She played a supporting role in the 1998 television movie Winchell.
