The British comic book 2000 AD has a tradition of giving their main characters distinctive visual appearance. This is one of the weirdest.
Lobster Random is a solider that genetically altered to not feel pain or need sleep. He also had two huge lobster-like claws coming out of his back. After being kicked out of the army, he decided to hire out his services because he is skilled in torturing people mainly in getting infomation.
He is a cynical, very grumpy and at times psychotic due to not sleeping for years and experiences after his discharge. He doesn't care about the methods he uses to get his job done.
My source was a Wikipedia page "Lobster Random".