Whatever Happened to Corporal Cuckoo?

"Whatever Happened to Corporal Cuckoo?" is a short story by Gerald Kersh. It is a science fiction story, dealing with a tale of a man who has had immortality thrust upon him in a way that does not benefit him at all. It was first published in Kersh's own collection, The Brighton Monster and Other Stories and later collected, first in the anthology Star Science Fiction Stories #3, edited by Frederik Pohl, then in the anthology One Hundred Years of Science Fiction, edited by Damon Knight.