Through a series of case studies, this book explores the role of live animals on the stage, from the early modern era to the present time. The contributors deal with visual and textual representations of performing animals; typologies of animals in the theatre; the hybridization of the drama with the circus, the zoo, and the cinema; as well as the semiotic transfer of animal roles from the text to the stage. The focus lies on the changing historical fortunes of the four-footed actor and on exploring the ways that attitudes to the animal affect their dramatic representations - within aesthetic contexts but also in their dramatized scientific use. Exploring snapshots of acting animals from their earliest manifestation on the early modern stage, the chapters contextualize and theorize particular uses of the animal actor, and key into current debates on the cutting edge of animal performance studies. While seeking to consider how these theoretical perspectives were formed, the collection delves into the multiple ways through which the animal presence problematizes the practice of theatricality. This book was originally published as a special issue of Studies in Theatre and Performance.