Television, film, theater actress Orlagh Cassidy will guest star in Unforgettable episode The Island on Sunday, August 24, 2014 at 9:00-10:00 PM ET/PT.
"The Island" directed by Oz Scott entails the death of a college dropout investigation that takes an unexpected turn. The CBS crime drama series now in its third season stars Poppy Montgomery, Dylan Walsh, and Jane Curtin.
CBS Press Release: Unforgettable - The Island