Rio, MelanieMadness is such a popular device in early modern English drama that extant playscripts are littered with stage directions indicating that a character should enter “like a madman” or simply, “mad.” Because the public playhouse required the psychosomatic participation of actors and observers from every social class and category, it served as a unique cultural laboratory in which to explore questions of cognition, embodiment, identity, and interiority. Madness as a theatrical device also offers unique insight into the challenge of “performing” an invisible disability. This dissertation examines representations of madness in the early English playhouse—primarily in the works of works Shakespeare, but also considering works by Fletcher, Webster, Middleton, Armin, and others—as well as extradramatic primary sources such as court cases and physicians’ notebooks in order to demonstrate how intersecting indices of identity influence the construction and interpretation of early modern cognitive disorder.enDissertationEnglish literatureTheater historyMental healthcognitiondramaearly modernmadnessmental disorderShakespeare