Though directors have been central to the theatre for more than a century, it is not easy to describe their function or explain fully what they do. Since they have not all done the same things, theorizing the office is a slippery enterprise. Despite this difficulty, the cultural authority of directors has become embedded in the thinking of both the commercial and subsidized sectors in most countries in the world, including many parts of Asia, so that directors are fundamental to the way we comprehend and value theatrical work. Though dictatorial modes of direction have been challenged in the past three decades by a variety of strategies, the theatre industry continues to rely heavily upon the managerial and aesthetic skills of the director, who stands as an icon of the successes and failures of twentieth-century theatre. This essay discusses two alternative histories of the director in the modern age, the modernist avant-garde model and an industrial model, showing that the two are much closer than typically claimed. Using André Antoine as case study, the essay offers a critique of certain tendencies in modernist theatre historiography. A final section looks at the interrelationship of the director and the spectator.