I'll try a few questions about characters in books. Which character;
1. Started life in a book by another author altogether and has been involved in the Battle of Little Bighorn, the siege of Lucknow and the Charge of the Light Brigade?
2. Is a bit of a one-man A Team. He becomes the earth's last hope in a battle between unfathomable powers?
3. Is an ex military policeman who drinks far too much coffee and has no fixed abode?
4. Is first encountered as a tourist's guide and goes on to become an Egregious Professor Of Cruel And Unusual Geography?
5. Is a debatedly homosexual, drug addict master of disguise.
I fear that this may be too easy for you lot, but I'll put it out there anyway.