User note: there are no credits present in the material.
From the screen:
About this Play Aid
This play aid augments Golden Heroes, the role-playing game of Superheroes. It contains: full-colour, Supervisors Screen with all combat tables for easy reference; 24 full-colour, stand-up Cardboard Characters of the Villains & Vandals in the Supervisors Book plus three Thugs; 21 full-colour File Cards detailing those Supervillains; and an A4 Pad of 30 Character Sheets, 10 Combat Sheets and 10 Campaign Record Sheets.