created by (197 episodes, 2004-2013)
written by (1 episode, 2005)
written by (7 episodes, 2004-2006)
story by (1 episode, 2006)
teleplay by (1 episode, 2005)
written by (33 episodes, 2004-2012)
teleplay by (3 episodes, 2006-2013)
story by (2 episodes, 2007-2013)
witten by (1 episode, 2011)
written by (27 episodes, 2004-2013)
teleplay by (1 episode, 2007)
writer (1 episode, 2009)
written by (18 episodes, 2005-2009)
story by (3 episodes, 2006-2010)
teleplay by (3 episodes, 2006-2010)
written by (20 episodes, 2006-2013)
teleplay by (1 episode, 2009)
written by (17 episodes, 2007-2013)
teleplay by (1 episode, 2010)
written by (12 episodes, 2006-2012)
teleplay by (2 episodes, 2007-2010)
story by (1 episode, 2005)
written by (10 episodes, 2004-2007)
written by (11 episodes, 2006-2010)
written by (8 episodes, 2010-2013)
story by (1 episode, 2010)
written by (8 episodes, 2004-2006)
written by (7 episodes, 2006-2009)
teleplay by (1 episode, 2006)
written by (7 episodes, 2009-2012)
written by (6 episodes, 2006-2009)
story by (1 episode, 2007)
written by (6 episodes, 2010-2012)
written by (4 episodes, 2007-2009)
written by (3 episodes, 2007-2009)
staff writer (3 episodes, 2008)
written by (3 episodes, 2010-2011)
written by (3 episodes, 2012)
written by (2 episodes, 2005)
story by (2 episodes, 2006-2008)
written by (2 episodes, 2006)
written by (2 episodes, 2007-2008)
story by (1 episode, 2008)
teleplay by (1 episode, 2008)
written by (1 episode, 2007)
written by (2 episodes, 2012-2013)
written by (2 episodes, 2012)
written by (1 episode, 2004)
written by (1 episode, 2009)
written by (1 episode, 2010)
written by (1 episode, 2011)
written by (1 episode, 2012)
story by (1 episode, 2013)
written by (uncredited) (2 episodes, 2005)