Like many exegetes before him, the twelfth-century Cistercian abbot Bernard of Clairvaux regarded the lovers in the Song of Songs as allegorical fictions. Yet these prosopopoeial figures remained of profound commentarial interest to him. Bernard’s Sermons on the Song of Songs returns again and again to the literal level of meaning, where text becomes voice and voice becomes fleshly persona. This essay argues that Bernard pursued a distinctive poetics of fictional persons modeled on the dramatic exegesis of Origen of Alexandria as well as on the Song itself. Ultimately, the essay suggests, Bernard’s Sermons form an overlooked episode in the literary history of fiction.