created by (232 episodes, 2002-2012)
written by (10 episodes, 2003-2007)
head writer (8 episodes, 2012)
teleplay by (2 episodes, 2005)
written by (1 episode, 2004)
written by (2 episodes, 2004-2005)
written by (31 episodes, 2003-2012)
teleplay by (3 episodes, 2004-2005)
story by (1 episode, 2005)
written by (23 episodes, 2005-2012)
teleplay by (1 episode, 2006)
written by (21 episodes, 2005-2011)
story editor (1 episode, 2007)
written by (15 episodes, 2002-2007)
teleplay by (4 episodes, 2003-2004)
story by (3 episodes, 2003-2005)
written by (22 episodes, 2003-2009)
written by (21 episodes, 2004-2012)
written by (14 episodes, 2003-2007)
teleplay by (6 episodes, 2003-2005)
story by (1 episode, 2006)
written by (19 episodes, 2004-2009)
story by (1 episode, 2004)
teleplay by (1 episode, 2004)
staff writer (16 episodes, 2011-2012)
written by (4 episodes, 2011-2012)
written by (16 episodes, 2002-2005)
teleplay by (2 episodes, 2004)
story by (1 episode, 2003)
written by (11 episodes, 2004-2007)
story by (5 episodes, 2003-2004)
written by (14 episodes, 2007-2011)
story editor (1 episode, 2008)
written by (12 episodes, 2008-2012)
written by (7 episodes, 2003-2005)
story by (2 episodes, 2004-2005)
written by (7 episodes, 2009-2012)
executive story editor (1 episode, 2012)
teleplay by (1 episode, 2011)
written by (4 episodes, 2002-2003)
teleplay by (3 episodes, 2003-2004)
written by (7 episodes, 2009-2011)
written by (4 episodes, 2003-2004)
written by (3 episodes, 2003-2004)
written by (4 episodes, 2010-2012)
written by (3 episodes, 2010-2011)
story by (1 episode, 2011)
written by (3 episodes, 2002-2003)
written by (3 episodes, 2005-2006)
written by (2 episodes, 2005)
written by (2 episodes, 2002)
written by (2 episodes, 2007-2008)
written by (2 episodes, 2009-2012)
written by (2 episodes, 2011-2012)
written by (1 episode, 2002)
written by (1 episode, 2003)
written by (1 episode, 2007)
written by (1 episode, 2009)
written by (1 episode, 2010)
written by (1 episode, 2011)
written by (1 episode, 2012)