Priscilla Roth is a training and supervising analyst at the Institute of Psychoanalysis, where she was head of training. Following her degree in psychology and working as a research assistant at the University of California, Berkeley, she trained as a child and adolescent psychotherapist at the Tavistock Clinic, and an analyst with the British Psychoanalytical Society. She has lectured at both institutions, the University College London, and internationally. She had been elected as a Distinguished Fellow of the British Psychoanalytical Society in 2022. She published many papers and edited several books, including Imaginary Existences: A Psychoanalytic Exploration of Phantasy, Fiction, Dreams and Daydreams, by Ignês Sodré; and, Envy and Gratitude Revisited.

Ignês Sodré is a training and supervising analyst of the British Psychoanalytical Society. She has taught extensively in London and abroad and was the first visiting professorial Fellow in Psychoanalysis at Birkbeck College. She published on psychoanalysis and on literature, and authored, Imaginary Existences: A Psychoanalytic Exploration of Phantasy, Fiction, Dreams and Daydreams.

Tomasz Fortuna is a psychoanalyst with the British Psychoanalytical Society. He works at the Portman Clinic and in private practice in London. He was a Visiting Professor in Psychoanalysis at the University Putra Malaysia and co-authored, Melanie Klein: The Basics.