Katy is the Irish Film Critic for The Sunday Times (Irish edition). She writes occasional columns for the news pages and features and interviews for The Sunday Times Culture Magazine.
She is the Theatre Critic with the Irish Independent.
She has written three novels: Lindbergh's Legacy (Weidenfeld and Nicolson, London, 2003); Gossip (Phoenix House, London, 2000) and Curtains (Phoenix House, London, 1998)
Her short stories are collected as Forecourt (Poolbeg Press, Dublin, 1995) later reprinted as Opening Nights (Phoenix House, London, 1999)
Her plays are: Playgirl, a one-act play produced by The Abbey Theatre on the Peacock Stage, 1995 and The Sun Always Rises, produced by RTE Radio1 Drama Department, 2011.
She has been Writer in Residence for Dun Laoghaire-Rathdown County Council 2012/13, and for the UCD MA in Anglo-Irish Literature and Drama 2008/09. She taught a creative writing workshop on the University of Iowa Summer Program in 2014 and on the M.Phil in Creative Writing at Trinity College in 2015. She was Teaching Fellow in Creative Writing (fiction) in the School of English, Dram and Film at UCD from 2016 to 2019.