On which television T.V. show does actress Katie Cassidy play the role of the character named Ruby?
Ruby (Supernatural): Ruby is a fictional character on The CW Television Network's "Supernatural" portrayed mainly by actresses Katie Cassidy and Genevieve Cortese. Katie Cassidy:  In 2007, Cassidy gained attention for her role as Ruby on the supernatural-horror television series "Supernatural", during its third season.
Supernatural