When Mr. Bevis asks Mr. Hempstead, "Who might you be?", Mr. Hempstead corrects him saying, "Whom; objective case". That is in fact wrong, and Mr. Bevis was correct as 'Who' is used as a predicate nominative and therefore, the nominative case is correct. See more
In the parlance of the twentieth century, this is an oddball. His name is James B. W. Bevis, and his tastes lean toward stuffed animals, zither music, professional football, Charles Dickens, moose heads, carnivals, dogs, children, and young ladies. Mr. Bevis is accident prone, a little vague, a little discombobulated, with a life that possesses all the security of a floating crap game. But this can be said of our Mr. Bevis: without him, without his warmth, without his ...