Kryten by Robert Llewellyn.

I met Robert Llewellyn last weekend at the Thought Bubble comic convention in Leeds. His main reason for being there was to promote his books, yep, he's a science fiction writer when he's not on TV. He came across as a genuinely nice bloke, and I picked up a copy of the first in his trilogy of books,

It sounded an interesting concept where his trilogy explored the idea of what would happen if something significant in the world we know was the complete opposite.
Free with every copy of his book, but not the reason I bought it honest, was a signed photo of him as Kryten.

Still one of my favourite Sci-Fi characters.
(Note - you should check out Robert's blog... very interesting stuff).