If all national identity is performative, the Northern Irish national identity offers a particularly pronounced model of this performative instability. Such precarity was emphasized when the 2016 UK EU ‘Brexit’ referendum raised contentious questions over Northern Irish citizenship. This article explores how two recent Northern Irish performance pieces, David Ireland’s Cyprus Avenue (2016) and Clare Dwyer Hogg’s Hard Border (2018), probe the unsettled plurality of Northern Irish national identity through the casting of actor Stephen Rea in their respective central roles. Rea’s own personal and professional history, as a figure inflected in the public mind with an extreme range of potential ‘Northern Irish identities’, encapsulates the shifting boundaries of an unstable, performative spectrum of ethno-national selfhood. This article explores how the lingering memories of Rea’s on- and offstage past offer a fittingly multilayered, even contradictory, representation of contemporary Northern Irish identity.