Peter Ayling is a qualified play therapist and social worker who has specialised in working with children and young people within the care system for 25 years. He worked for 14 years within a Child and Adolescent Mental Health Service (CAMHS) for Looked After Children. Pete currently works as a Senior Lecturer in Social Work and maintains a small, private play therapy practice.

Harriet Armstrong obtained a Master's Degree in Play Therapy from the University of Roehampton in 2009. She has since worked as a play therapist privately and in schools with children who have suffered a wide range of trauma, disorders and difficulties. Harriet has been Chair of PR and Communications of BAPT and is currently Joint Vice-Chair.

Lisa Gordon Clark trained as a play therapist at Roehampton, following several years as a primary school teacher, and has since worked both in private practice and as resident play therapist at a Child and Family Centre in London. Lisa is currently Programme Convener of the Play Therapy MA at the University of Roehampton and Fellow of the HEA.