He is the author of Andrew Marvell (Cambridge University Press), The Writing of Royalism, 1628-1660 (Cambridge University Press), and Understanding Arnold Wesker (University of South Carolina Press), and has edited Andrew Marvell: Selected Poetry and Prose (Methuen/Routledge). He has contributed chapters to several books and published articles in various periodicals on seventeenth-century poets (Milton, Marvell, Vaughan, Quarles), Shakespeare (Timon of Athens, Antony and Cleopatra, King Lear), and modern dramatists (Samuel Beckett, Howard Barker, Arnold Wesker, David Rudkin, Tom Stoppard).
Dr Wilcher's main research interests are in the literature of the mid-seventeenth century and the field of twentieth-century drama. He is currently working on Royalist/Anglican writing of the 1650s and on a study of the poetry, plays and prose of Sir John Suckling in the social, religious, political and literary contexts of the 1630s.