pet shop boys:
Neil Tennant
Chris Lowe
producers:
List of peronages produced PSB albums or tracks.
vocalists:
List of backing vocalists who sang on tours and records.
musicians:
List of musicians who played on tours and records.
remixers:
List of personages who remixed PSB songs.

in the studio:
List of personages who helps to create records - sound engineers, programmers...
visual:
List of people who care of PSB visual side - video directors, photographers, designers...
collaborations:
List of personages who PSB collaborated with on their records.
managers:
List of managers of the band as the time goes by.