My Name is Legion Roger Zelazny 1978
He did not exist...or did he?
He had destroyed his punchcards and changed his face. There was no credit card, birth record, or passport for him in the International Data Bank.
His names were many...any he chose. His occupation was taking megarisks in the service of a vast global detective agency.
His interworld assignments were highly lucrative, incalculably vital, and terrifyingly deadly. And more often then not, his life was a living hell!