From the great movement of Italian and, then, Western Renaissance, it is of use to retain, in the first analysis, the passion for all the aspects of the Greek antiquity, literarily (and even literally), registered in the stone. In fact, 15th and 16th centuries legitimately appropriate, regarding the importance of the event, the idea of renewed genesis on a Western scale. For this reason, it can seem improper to apply the “controlled appellation” of “renaissance” to the French theatre on the first half of the 20th century. It is, however, a form of renaissance which, through Giraudoux and others like Cocteau, appropriates once more, after centuries of forgetfulness, certain figures of the ancient theatre, by parodying them, in accordance with the outburst of post- industrial modernity. Despite all, it would be wrong if one just retain the parodic dimension from a second modern reading of the old myths. Throughout this article and through the character of the Sphinx in La machine infernale by Cocteau, we will note that beyond the parodic dimension, there has been, during this halfcentury and through various amalgams, certain re-creation of the original theatrical figures, irreducible to simple typical parodies.