Clive Barker had developed elaborate back-stories for the Cenobites in the first film, though their origins were never explored. In this film, he wanted to make sure that, at the very least, the audience understood that the Cenobites were once human, and that their own vices lead to their becoming demons. This element was meant to underline the story of Frank (Oliver Smith) and Julia (Clare Higgins) and their corruption by lust, with the latter intended to become the ultimate villain of the series. Pinhead, however, proved much more popular with audiences, and thus became the center point in further sequels.
An in-depth subplot detailing the origins of Pinhead (Doug Bradley) was scripted but deleted in preproduction due to last minute budget cuts. All that remains of this subplot is the film's prologue showing Capt. Spencer opening the box and transforming into Pinhead. Pinhead/Capt. Spencer's backstory was later explored in Hellraiser III: Hell on Earth (1992)
As fans of the movie know, originally there was going to be an extra scene during the ending when Kirsty and Tiffany are running from Channard. Scene was planned to go like this; During their escape they ran into doctor and nurse. Doctor demands to know what are they doing. Kirsty backs away in horror when suddenly doctor and nurse turn into Pinhead and Female Cenobite and then her and Tiffany continue running. Scene was set to be filmed but it was ultimately dropped for two reasons. One was because filmmakers thought that having actor Doug Bradley as normal doctor would confuse the viewers, and second one was because effects were very bad so it was decided to stop filming the scene. However, still photographer who was on set took some photos of Pinhead and Female Cenobite dressed as surgeons which were used for promotion of the film and were also used on some VHS/DVD covers of the movie, confusing the fans and starting a rumor about "infamous deleted surgery scene". Some trailers do show few shots from this unfinished scene and couple shots of another deleted scene with Chatterer stopping the elevator with his hand and jumping at Kirsty and Tiffany.