Dr Paramabandhu Groves is a consultant psychiatrist working in the National Health Service in the UK, specializing in the field of addiction. He is a member of the Triratna Buddhist Order. He is the co-author of Eight Step Recovery by Windhorse Publications.

Dr Jed Shamel works as a clinical psychologist in East London. He is a member of the British Psychological Society, with particular interests in community psychology and compassion-focused interventions with individuals and groups.