Issue twenty-two of the UK Masters of the Universe comic gives a brief profile of Two Bad in The Secret Files of Scrollos. In the UK comics Two Bad was often portrayed as a scientific genius who created many weapons and devices for Skeletor. The two heads argued with one another, but usually over the design and purpose of their machinations. Some people may think this is an odd piece of characterization, but personally I feel that the comic's characterization of Two Bad was far superior to Filmation's version who was yet another one of Skeletor's bumbling henchmen, the two headed interplay making the character come across sillier than most.
(click on the image to see it at full-size)