Conversation so far:
What was Pinhead's, from the Hellraiser series, personality like?
According to Pinhead Creator Clive Barker, his intended portrayal of Pinhead was an articulate and intelligent character.
What else can you tell me about Pinhead's, from the Hellraiser series, personality?
Described by Pinhead's human half in Hellraiser III: Hell on Earth as being very persuasive and very inventive, Pinhead prefers using coercive methods in order to obtain his goals.
Did Pinhead from the Hellraiser series have more than one personality?
It is revealed that Pinhead originated as Elliott Spencer, a captain in the British Expeditionary Force suffering from PTSD and survivor guilt.
Did Pinhead's, from the Hellraiser series, personality have any weaknesses?
When Pinhead remembers his human past in Hellbound: Hellraiser II, it results in what screenwriter Peter Atkins described as him being spiritually weakened and subsequently killed by the Chanard Cenobite.
Are there any other interesting aspects about Pinhead's, from the Hellraiser series, personality?
Pinhead was initially not well received by producers: some suggested Pinhead should act like Freddy Krueger and crack jokes, while others suggested he be a silent character like Jason Voorhees.

Question: Did any one else say anything about his personality?
Self-contained rewrite: Did any one other than Hellraiser producers say anything about Pinhead's personality?