After abandoning a career in the Irish Customs & Excise service Gerard O'Donovan travelled widely, living in Madrid and Vienna before settling down to make a living as a journalist and critic for such publications as The Sunday Times and Daily Telegraph. In 2007 he was shortlisted for the Crime Writers' Association's prestigious Debut Dagger competition.
A former Operational Station Officer in the London Fire Brigade, Pat O'Keeffe is also the holder of a 5th degree black belt in Karate and has fought 28 times as a kick-boxer.
Thomas O'Malley was raised in Ireland and England. He is a graduate of the University of Massachusetts, Boston, and the Iowa Writers' Workshop, and currently teaches on the faculty of creative writing at Dartmouth College. He is the author of the novels In the Province of Saints and This Magnificent Desolation. He lives in the Boston area.
Kate O'Riordan was brought up in the west of Ireland. She is the award-winning author of five novels, and has also written for stage and screen and most recently has been writing scripts for MR SELFRIDGE. She lives in Twickenham.
Perri O'Shaugnessy is the pen name for two sisters, Pamela and Mary O'Shaughnessy. Pamela graduated from Harvard Law School and was a trial lawyer for sixteen years. Mary is a former editor and writer for multimedia projects. Visit them at www.perio.com
New York Times bestselling author Gregg Olsen has written eight non-fiction books, six novels and has contributed a short story to a collection edited by Lee Child. The award-winning author has been a guest on US and international television shows discussing crime.