The fourth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered September 18, 2008, and concluded on May 14, 2009, on The CW.
The sixth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered September 24, 2010, and concluded May 20, 2011, airing 22 episodes.
 This is the first season to have Sera Gamble as showrunner after the full-time departure of Kripke.
 The sixth season had an average viewership of 2.27 million U.S. viewers.
The fifth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered September 10, 2009, and concluded on May 13, 2010, on The CW.
 Season five regular cast members include Jared Padalecki, Jensen Ackles and Misha Collins, who was promoted to series regular this season.
 After the conclusion of this season, series creator Eric Kripke stepped down as showrunner.
 The fifth season was released on DVD and Blu-ray in region 1 on September 7, 2010.
 The season follows Sam and Dean as they set out to take down Lucifer, whom Sam had inadvertently released from Hell at the end of the previous season.
The eighth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered October 3, 2012, and concluded on May 15, 2013, airing 23 episodes.
 It is the first season headed by Jeremy Carver as executive producer and showrunner.
 It aired on Wednesdays at 9:00 pm (ET) on The CW.
 The season was released on DVD and Blu-ray in region 1 on September 10, 2013,<ref name="DVD/Blu"> </ref> in region 2 on October 28, 2013, and in region 4 on September 25, 2014.
 The eighth season had an average viewership of 2.12 million U.S. viewers.
 In the season, Dean reunites with Sam after escaping from Purgatory and team up with the prophet, Kevin, to collect a series of tablets that'll allow them to close the gates of Hell for good.
The third season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered on October 4, 2007, and concluded on May 15, 2008.
 Traveling throughout America, protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) use their father's journal to help them carry on the family business—saving people and hunting supernatural creatures.
 The season begins with the brothers tracking down the demons released from Hell in the previous season finale.
 They become allies with a demon named Ruby (Katie Cassidy), who claims to know a way to release Dean from his demonic pact—he had sold his soul to a demon and was given a year to live in exchange for Sam's resurrection—and wants to protect them from the new demonic leader Lilith.
 As Dean's deadline approaches, their efforts are further hindered by Bela Talbot (Lauren Cohan), a professional thief of occult items who is often at odds with the Winchesters.
The ninth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered on October 8, 2013, concluded on May 20, 2014, and contained 23 episodes.
 This is the second season with Jeremy Carver as showrunner.
 The season was released on DVD and Blu-ray in region 1 on September 9, 2014, in region 2 on June 8, 2015, and in region 4 on October 8, 2014.
 The ninth season had an average viewership of 2.19 million U.S. viewers.
The first season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered on September 13, 2005, and concluded on May 4, 2006 after 22 episodes.
 It focuses on brothers Sam and Dean Winchester as they track down their father, John, who is on the trail of the demon who killed their mother and Sam's girlfriend.
 During their travels, they use their father's journal to help them carry on the family business—saving people and hunting supernatural creatures.
 Jared Padalecki and Jensen Ackles star as Sam and Dean, with Jeffrey Dean Morgan recurring as their father, John, and Nicki Aycox as the demonic Meg Masters.
 This is the only season to air on The WB Television Network, with all subsequent seasons airing on The CW Television Network, a joint venture of The WB and UPN.
Brittany Mariko Ishibashi (born November 2, 1980) is an American television and film actress best known for her roles as Anne Ogami on the USA Network miniseries "Political Animals", and Maggie Zeddmore in the "Supernatural" web series "Ghostfacers".
 Ishibashi portrayed Karai in "", the sequel to "Teenage Mutant Ninja Turtles".
The seventh season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered September 23, 2011, and concluded May 18, 2012, airing 23 episodes.
 The season focuses on protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) facing a new enemy called Leviathans, stronger than they have encountered so far as well as rendering their usual weapons useless.
Supernatural is an American fantasy horror television series created by Eric Kripke.
 It was first broadcast on September 13, 2005, on The WB, and subsequently became part of successor The CW's lineup.
 Starring Jared Padalecki as Sam Winchester and Jensen Ackles as Dean Winchester, the series follows the two brothers as they hunt demons, ghosts, monsters, and other supernatural beings.
 The series is produced by Warner Bros.
 Television, in association with Wonderland Sound and Vision.
 Along with Kripke, executive producers have been McG, Robert Singer, Phil Sgriccia, Sera Gamble, Jeremy Carver, John Shiban, Ben Edlund and Adam Glass.
 Former executive producer and director Kim Manners died of lung cancer during production of the fourth season.

Question: which American fantasy horror television series didBrittany Ishibashi played the role of Maggie Zeddmore
Answer: Supernatural