created by (78 episodes, 1997-2011)
writer (40 episodes, 1997-2011)
script writer (1 episode, 2006)
writer (24 episodes, 1997-2011)
head writer (23 episodes, 2011)
writer (52 episodes, 1997-2011)
writer (7 episodes, 2007-2011)
(11 episodes, 2007-2011)
punch-up writer (7 episodes, 2006-2007)
punch up writer (1 episode, 2006)
writer (6 episodes, 2011)
(2 episodes, 2006-2008)
screenplay (1 episode, 2008)
writer (2 episodes, 2008)
writer (2 episodes, 2011)
screenplay (1 episode, 2006)
(1 episode, 2006)
creator (1 episode, 2006)
(unknown episodes)