creator (22 episodes, 2002-2011)
written by (4 episodes, 2002-2003)
writer (2 episodes, 2002-2004)
writer (10 episodes, 2004-2009)
additional writing (3 episodes, 2008)
written by (2 episodes, 2003-2009)
story (1 episode, 2009)
written by (7 episodes, 2002-2003)
writer (6 episodes, 2004-2005)
writer (5 episodes, 2010)
(9 episodes, 2010-2011)
writer (8 episodes, 2005-2010)
writer (5 episodes, 2006-2008)
written by (3 episodes, 2007-2008)
writer (5 episodes, 2004-2006)
writer (3 episodes, 2004-2005)
writer (1 episode, 2006)
written by (1 episode, 2007)
writer (3 episodes, 2008-2010)
writer (2 episodes, 2008-2009)
written by (1 episode, 2008)
(2 episodes, 2011)
written by (1 episode, 2011)
written by (1 episode, 2006)
writer (1 episode, 2007)
writer (1 episode, 2008)
writer (1 episode, 2009)
writer (1 episode, 2010)
written by (uncredited) (2 episodes, 2002-2003)
written by (uncredited) (1 episode, 2003)
