How tall is John Cullum

I showed this letter of introduction to the guy who was in charge. He didn't even look at it. He just said, "How tall are you?" and I said, "Five eleven." He said, "Sit down over there." He pointed to a bench. There were three other guys there. So I sat down and I said, "What's going on?" "They're looking for tall actors to be extras in Saint Joan, and this is the under-six-foot bench."
-- A Wonderful Guy (Conversations with the Great Men of Musical Theater)