Asmus at the Royal Court Theatre, West End, The Barbican Centre, and the Brooklyn Academy of Music, and performed sold-out shows at various international locations. In a review of her performance at the Brooklyn Academy of Music, Ben Brantley wrote that Dwan "is an instrument of Beckett, in that way saints and martyrs are said to be instruments of God". In October 2016, Dwan adapted and starred in No's Knife, a one-woman production adapted from Beckett's Stories and Texts for Nothing at London's Old Vic and Abbey Theatre Dublin. Dwan is the first woman to perform Beckett's Stories and Texts for Nothing. In 2017, Dwan starred in Harold Pinter's "The Lover" and "The Collection" at the Shakespeare Theatre Company in Washington, D.C., for which she won Shakespeare Theatre Company's Emery Battis Award for Acting Excellence. In 2016, Dwan starred in Marina Carr's stage adaptation of Anna Karenina for the Abbey Theatre in Dublin. Other recent theatre appearances include Shining City off-Broadway and at the Irish Repertory Theatre in 2016, Beside the Sea at the Southbank Centre in London in 2012, Margot, Diary of an Unhappy Queen in at the Barbican Centre in London in 2012, The Journey Between Us at Southbank Theatre in London in 2016, Illusions by Ivan Viripaev at the Bush Theatre in London, The Soldier's Tale at the Hay Festival in 2013, The Importance of Being Earnest on tour in Ireland in 1999, and The History of the World at 3am at Andrews Lane Theatre in Dublin in 1996, among others. In 2021, Dwan played Tori Matthews opposite James Nesbitt in Bloodlands, an acclaimed four-part BBC drama. Dwan regularly writes, lectures, and teaches on theatre, gender, and Beckett. Recent speaking engagements include appearances on BBC radio and television and WNYC. Dwan also writes about Beckett and the arts, including an in The Guardian. She has lectured at the École Normale Supérieure, University of Reading and the University of Oxford, and recently completed a residency at Princeton University's Lewis Center for the Arts, where she taught a class on adapting Beckett's prose work. Dwan was also a 2017–2018 artist in residence at Columbia University, where she worked with Irish writer Colm Toibin on Pale Sister, a play derived from the class they taught called "The Antigone Project". Dwan was a resident fellow at the School of Art and Ballet at New York University from 2017 to 2018. Dwan