creator (72 episodes, 2002-2007)
co-creator (72 episodes, 2002-2007)
created by (3 episodes, 2019-2020)
written by (1 episode, 2019)
writer (62 episodes, 2003-2007)
(92 episodes, 2003-2021)
written by (3 episodes, 2019-2020)
created by (1 episode, 2019)
writer (70 episodes, 2002-2007)
written by (2 episodes, 2003)
writer (40 episodes, 2002-2004)
(69 episodes, 2002-2021)
written by (5 episodes, 2003-2020)
writer (64 episodes, 2002-2005)
writer (41 episodes, 2002-2004)
written by (1 episode, 2003)
staff writer (42 episodes, 2002-2004)
(42 episodes, 2002-2004)
writer (10 episodes, 2002)
(38 episodes, 2007-2021)
head writer (8 episodes, 2007)
(30 episodes, 2019-2021)
writer (9 episodes, 2019)
Original Senior Writer (29 episodes, 2002-2003)
(28 episodes, 2019-2021)
writer (22 episodes, 2005)
supervising writer (22 episodes, 2005)
(20 episodes, 2019-2020)
writer (20 episodes, 2021-2022)
(18 episodes, 2007-2021)
supervising writer (8 episodes, 2007)
(18 episodes, 2019-2020)
(16 episodes, 2019-2020)
(13 episodes, 2019-2020)
(10 episodes, 2021)
writer (3 episodes, 2021)
writer (8 episodes, 2007)
collaborating writer (8 episodes, 2007)
staff writer (8 episodes, 2007)
(1 episode, 2003)
contributing writer (1 episode, 2007)
(1 episode, 2020)
(unknown episodes)