John Sharry, DPsych, is a family and child psychotherapist and works part-time as Principal Social Woker for the Mater Hospital and as a Director of the Parents Plus Charity. He co-founded the Brief Therapy Group in Dublin, Ireland, in 1998 with Brendan Madden and Melissa Darmody.

Brendan Madden, MA, is a psychologist with over 20 years experience in the behavioral healthcare and employee assistance sectors. He is Chief Executive of Relationships Ireland, a not-for-profit counseling agency.

Melissa Darmody, DPsych, is a counseling psychologist whose current role is Clinical Director of Towards Healing, the Catholic Church service for adult survivors of abuse in Ireland. She also has a successful clinical practice in supervision and training.