Professor Mark Freeston (Chair Guideline Development Group)
Professor of Clinical Psychology, University of Newcastle upon Tyne Newcastle, North Tyneside and Northumberland Mental Health NHS Trust
Dr Tim Kendall (Facilitator, Guideline Development Group)
Co-Director, The National Collaborating Centre for Mental Health Deputy Director, Royal College of Psychiatrists' Research Unit Consultant Psychiatrist and Medical Director, Community Health Sheffield NHS Trust
Dr Jo Derisley
Chartered Clinical Psychologist, Norfolk & Waveney Mental Health Partnership NHS Trust, Honorary Lecturer, University of East Anglia
Dr Naomi Fineberg
Consultant Psychiatrist, Queen Elizabeth II Hospital, Welwyn Garden City
Ms Tracey Flannaghan
Nurse in Practice, CBT Department, Glenfield Hospital, Leicester
Dr Isobel Heyman
Consultant Child Psychiatrist, Maudsley and Great Ormond Street Hospitals, Children's Department, Maudsley Hospital, London
Mr Richard Jenkins
Systematic Reviewer (2003–2004), The National Collaborating Centre for Mental Health
Mr Christopher Jones
Health Economist, The National Collaborating Centre for Mental Health
Ms Gillian Knight
Representative for People with OCD, London
Dr Karina Lovell
Senior Lecturer, School of Nursing, Midwifery and Social Work, University of Manchester, Manchester
Dr Catherine Pettinari
Senior Centre Project Manager, The National Collaborating Centre for Mental Health
Ms Preethi Premkumar
Research Assistant, The National Collaborating Centre for Mental Health
Mr Cliff Snelling
Representative for Carers of People with OCD, Northampton
Dr Clare Taylor
Editor, The National Collaborating Centre for Mental Health
Mr Rowland Urey
Representative for People with OCD, Oldham Open User Forum, Oldham
Dr David Veale
Consultant Psychiatrist in Cognitive Behaviour Therapy, The Priory Hospital North London and the South London and Maudsley Trust
Honorary Senior Lecturer, Institute of Psychiatry, King's College, London
Ms Heather Wilder
Information Scientist, The National Collaborating Centre for Mental Health
Dr Craig Whittington
Senior Systematic Reviewer (2004–2005), The National Collaborating Centre for Mental Health
Dr Steven Williams
General Practitioner, The Garth Surgery, Guisborough
