Conversation so far:
What kind of personality does Pinhead (Hellraiser) have?
According to Clive Barker, his intended portrayal of Pinhead as an articulate and intelligent character was initially not well received by the producers.
What did the producers of the film Hellraiser end up doing about Pinhead's (Hellraiser) personality?
Some suggested that Pinhead should act more like Freddy Krueger and crack jokes, while others suggested that he be a silent character like Jason Voorhees and Michael Myers.
Did Clive Barker follow the suggestion of the producers of the film Hellraiser?
Barker insisted that Pinhead's personality be more evocative of Christopher Lee's portrayal of Count Dracula.
Is there anything else interesting about Pinhead (Hellraiser) besides his personality?
In order to act in the physical world, Pinhead needs to have been purposely summoned through the Lament Configuration.

Question: Does he have other weaknesses?
Self-contained rewrite: Does Pinhead (Hellraiser) have other weaknesses besides needing to have been purposely summoned into the physical world through the Lament Configuration?