Dorothée Bonnigal-Katz is a psychoanalyst, clinical supervisor and translator in the field of psychoanalytic theory. She is Senior Psychotherapist at the Bethlem Royal Hospital, working in inpatient services and the Founder and Clinical Director of the Psychosis Therapy Project (PTP), a specialist community service for people who experience psychosis and complex trauma.  

 Earl Pennycooke is a psychotherapist who has worked in a variety of settings, from brief work within the National Health Service to managing frontline addiction and mental health services. Earl is co-director of the Psychosis Therapy Project (PTP) and the Founder and Clinical Lead of the USEMI Racial Trauma Clinic, a Black-led specialist service for those experiencing racialisation and severe mental illness (USEMI is part of PTP).

Barry Watt is a psychoanalytic psychotherapist, whose work has focused on making psychotherapy available to those traditionally excluded from it. He is Senior Psychotherapist and co-director at the Psychosis Therapy Project (PTP). He is a member of the Training Committee for the Site for Contemporary Psychoanalysis and currently serves on the Editorial Board of the British Journal for Psychotherapy.