As an actress, Emer Gillespie played leads or leading roles in ground-breaking television and film such as Chimera, Troubles, Ultraviolet and The Cook, The Thief, His Wife and Her Lover. Her two crime novels, Virtual Stranger and Five Dead Men, described by the Times as, 'frighteningly realistic' were published by Headline. As a script writer, her work has won or placed in several script initiatives here and in the US. Her feature thriller The Agreement received development funding through Northern Ireland Screen and the UK Film Council. 

Her TV drama, The Siege, is in development with Ecosse and she has been contracted by Lorenzo di Bonaventura to do a rewrite of an LA action thriller feature.