Question: On which television T.V. show does actress Katie Cassidy play the role of the character named Ruby?

<P0-S0> Lucas Edwin Babin (born July 30, 1979) is an American film and television actor. <P0-S1>  He speaks Portuguese fluently and has a twin sister named Kirsten. <P0-S2>  Born in Beaumont, Texas, Lucas attended high school in Woodville TX, where his father, Brian Babin was the town mayor. <P0-S3>  He then moved to California to live with his brother Leif. <P0-S4>  After a couple of years he moved into an apartment in Hollywood with a friend Bryan Gay (also an actor from Woodville). <P0-S5>  He pursued an acting modeling career for several years before landing a role in "School of Rock" starring Jack Black. <P0-S6>  He then went on to act in several short and independent films before landing a role on the Brazilian T.V. show called "America". <P0-S7>  Babin met and married a Brazilian woman and they now have two children. <P0-S8>  His television work has included roles in "Undressed" and "Sex and the City". <SEP> <P1-S0> Ruby Lopez is a Television Host, Actress, Producer and Foot Model. <P1-S1>  Ruby has extensive on-camera experience. <P1-S2>  Ruby hosted the exclusive Videogame show for Yahoo.com called "Reset". <P1-S3>  In 2005 Ruby was able to put her passion for cars and hosting to use as a pit reporter for many race series including NASCAR and NHRA and continues to do so today. <P1-S4>  Ruby is also a producer and has produced, written and directed two half-hour shows and many commercial spots in the SF Bay Area. <P1-S5>  In 2007 Ruby reported for Comcast SportsNet’s new Motorsports show, "Zero to 60", where she interviewed and raced with some of the top drivers. <P1-S6>  In Fall 2007 Ruby Lopez became the new reporter on "49ers Total Access", a weekly show that takes you behind the scenes of the 49ers season. <P1-S7>  This Fall Ruby will return for her second season on "49ers Total Access". <P1-S8>  Ruby also co-hosts alongside former Raiders' TE, Jeremy Brigham on the show, "Outta Bounds", taking you "Outside the Box" of Bay Area's Sports which airs on KICU TV36. <SEP> <P2-S0>  Created by the writers to expand on the characterization of demons within the series, she first appears in the third season, wherein she assists series protagonists Sam and Dean Winchester in fighting her fellow demons. <P2-S1> Ruby is a fictional character on The CW Television Network's "Supernatural" portrayed mainly by actresses Katie Cassidy and Genevieve Cortese. <P2-S2>  By the fourth season, she has won Sam's trust and begins training him to kill demons with his psychic powers, though Dean remains fearful of ulterior motives. <P2-S3>  The character departs the series at the end of the fourth season. <P2-S4>  Though the fans at first reacted negatively towards Cortese replacing Cassidy after the third season, Cortese and creator Eric Kripke felt that they became more accepting as the fourth season progressed. <P2-S5>  While fan response to the character was mixed overall, critical reception was generally negative. <P2-S6>  A common criticism was underwhelming performances by Cassidy and Cortese. <SEP> <P3-S0> Katherine Evelyn Anita Cassidy (born November 25, 1986) is an American actress. <P3-S1>  After initially appearing in minor television roles, she made her film debut in "When a Stranger Calls" (2006). <P3-S2>  During the same year, she also had her first starring role as Kelli Presley in "Black Christmas" (2006). <P3-S3>  She later had a supporting role in "Taken". <P3-S4>  In 2009, Cassidy became a cast member of the series "Harper's Island" and "Melrose Place", both of which lasted for only one season. <P3-S5>  In 2007, Cassidy gained attention for her role as Ruby on the supernatural-horror television series "Supernatural", during its third season. <P3-S6>  During 2010, she had a supporting role as Kris Fowles in "A Nightmare on Elm Street" and a recurring role during the fourth season of "Gossip Girl".