creator (105 episodes, 2005-2018)
developer (103 episodes, 2005-2013)
developed by (65 episodes, 2015-2023)
created by (64 episodes, 2015-2023)
written by (56 episodes, 2005-2023)
story (9 episodes, 2005-2007)
teleplay (1 episode, 2007)
developer (104 episodes, 2005-2017)
written by (42 episodes, 2005-2023)
story (6 episodes, 2005-2007)
story (8 episodes, 2005-2007)
written by (32 episodes, 2006-2023)
story editor (15 episodes, 2007)
(42 episodes, 2006-2023)
story editor (13 episodes, 2011)
executive story editor (10 episodes, 2012)
written by (10 episodes, 2009-2016)
written by (9 episodes, 2010-2016)
written by (25 episodes, 2007-2017)
teleplay (3 episodes, 2007-2010)
written by (23 episodes, 2007-2023)
executive story editor (13 episodes, 2009)
staff writer (12 episodes, 2008)
written by (2 episodes, 2008-2009)
staff writer (10 episodes, 2018)
story editor (10 episodes, 2019)
written by (1 episode, 2018)
executive story editor (10 episodes, 2019)
staff writer (10 episodes, 2019)
story editor (8 episodes, 2021)
written by (1 episode, 2021)
executive story editor (13 episodes, 2011)
written by (3 episodes, 2010-2012)
story (1 episode, 2010)
story (1 episode, 2007)
executive story editor (12 episodes, 2010)
written by (3 episodes, 2009-2010)
(13 episodes, 2009-2010)
story editor (10 episodes, 2017)
written by (5 episodes, 2016-2019)
story editor (10 episodes, 2015)
staff writer (2 episodes, 2013)
story editor (10 episodes, 2012)
written by (2 episodes, 2011-2012)
executive story editor (10 episodes, 2016)
written by (7 episodes, 2017-2023)
written by (5 episodes, 2017-2019)
written by (2 episodes, 2016-2017)
written by (2 episodes, 2021-2023)
written by (1 episode, 2006)
written by (1 episode, 2008)
written by (1 episode, 2011)
written by (1 episode, 2013)
written by (1 episode, 2016)
written by (1 episode, 2019)
staff writer (1 episode, 2021)
written by (1 episode, 2023)
staff writer (2009) (unknown episodes)
staff writer (uncredited) (13 episodes, 2009)