The Re-imagined Series has a large production staff with many specific credits.
Executive Producer
The executive producers are the most senior members of the production team and exert the most creative control over the series. They are typically the show runners and head writers.
Ronald D. Moore and David Eick have been the series executive producers from the Miniseries up to the fourth season.
Co-Executive Producer
Co-Executive Producer is a senior production role and a co-executive producer reports directly to the series' executive producers. Its meaning as a credited role is distinct from someone who shares the executive producer role, i.e. if a project has more than one executive producer, it doesn't mean that these individuals are "co-executive producers" in the technical sense of that term.
Toni Graphia was the series first co-executive producer and worked on the first and second season. Mark Verheiden became a co-executive producer part way through the second season and continued in this role up to the fourth season. Michael Angeli became a co-executive producer for the third season and continued in this role up to the fourth season. Jane Espenson joined the production team as a co-executive producer in the fourth season. Michael Taylor was promoted to this position with the fourth season.
Supervising Producer
Supervising Producer is a senior production role and involves overseeing aspects of production.
There were no supervising producer credits on the first and second season. Harvey Frand became a supervising producer for the third season. He was joined by new production team member Michael Taylor. Bradley Thompson and David Weddle joined Frand as supervising producers for the fourth season.
Consulting Producer
Consulting Producer is an advisory production role with limited or no on set involvement.
Original Series creator Glen A. Larson has been credited as a consulting producer throughout the series, although solely because he holds the rights to the concept of Battlestar Galactica. Mark Verheiden joined the production team as a consulting producer for the second season but became a co-executive producer midway through the season.
Producer
As well as more generally referring to a member of the production team, "producer" is a specific credit under the Writers Guild system. It refers to someone with wide ranging production responsibilities who reports to the senior producers.
Harvey Frand served as a producer on the first and second series. Michael Rymer, Bradley Thompson and David Weddle were credited as producers for the third season. Rymer continued in this role for the fourth season and was joined by Ron E. French.
Line Producer
A line producer is specifically responsible for handling the day to day aspects of production including personnel and the actual shooting of the episodes.
Ron E. French was credited as line producer from the first season to the third season. Harvey Frand also served in this capacity although he was never credited specifically as a Line Producer because he holds wider ranging responsibilities. There is no line producer credit on the fourth season but Frand and French continue to handle this aspect of production from their more senior positions.
Co-Producer
A junior producer who has less responsibility than a producer for the completion of a project. Note that if a project has more than one producer, it doesn't mean that these individuals are "co-producers" in the technical sense of that term.
There were no co-producer credits on the first season. Paul M. Leonard has been credited as a co-producer from the second season onwards. Bradley Thompson and David Weddle were also credited as co-producers for the second season.
Associate Producer
A junior producer who performs a limited number of producing functions delegated to her/him by a more senior producer, under the direct supervision and control of that producer.
Paul M. Leonard was credited as an associate producer for the first season. There were no associate producers for the second and third seasons. Editor Andrew Seklir became an associate producer for the fourth season - he is responsible for the opening credits sequence.
Story Editor
Story editor is a liaison position between the series writing and production staff. The story editor has many responsibilities including finding new script writers, developing stories with writers, and ensuring that scripts are suitable for production. The story editor will work closely with the writer at each draft of their story and script, giving the writer feedback on the quality of their work, suggesting improvements that can be made whilst also ensuring that practical issues like continuity and correct running time are adhered to.
Executive Story Editor is a more senior credit attached to the same role. Executive Story Editors typically have further production responsibilities.
The story editor position was initially held by Bradley Thompson and David Weddle in the first season. Carla Robinson took over for the second season. Anne Cofell Saunders held the role for the third season. Joel Anderson Thompson was credited as Executive Story Editor for the second season only.