Dr Spyridon “Spyros” Gennatas, BSc MBChB PhD MRCP(UK), is a Consultant Medical Oncologist at Guy’s and St Thomas’ NHS Foundation Trust, London, with a specialist interest in thoracic cancers and acute oncology. He trained in Medical Oncology at The Royal Marsden Hospital and completed a PhD at Imperial College London on the molecular genetics of thymic epithelial tumours, having also undertaken research in mesothelioma biology. His clinical and academic work focuses on lung cancer, mesothelioma, thymic epithelial tumours, rare thoracic malignancies and molecularly driven oncology. He is involved in thoracic oncology clinical trials and real-world research, with academic contributions spanning thymic malignancies, mesothelioma, lung cancer in never smokers, immunotherapy toxicity and targeted therapies. He is a member of ASCO, ESMO, IASLC, BTOG, ITMIG and other specialist oncology groups, and contributes to national and international education, guideline, advisory and scientific committee work. He is also committed to postgraduate medical education, clinical training and academic mentorship. Keywords Thoracic oncology; lung cancer; non-small cell lung cancer; mesothelioma; thymic epithelial tumours; rare thoracic cancers; molecular oncology; targeted therapy; immunotherapy toxicity; real-world evidence.