Oscar Craig was a consultant radiologist and honorary senior clinical lecturer at St Mary’s Hospital, London and a former president of the Royal College of Radiologists. He was born on 7 May 1927, the son of James Oscar Max Clark Craig and Olivia Craig. He qualified in Dublin in 1950 and immediately moved to London. After a short period in general practice, Oscar spent two years in the RAF from 1954 to 1956 and was then a senior house officer in surgery at Hammersmith Hospital and subsequently a register and senior registrar in the department of radiology at St Mary’s Hospital, London. In 1963, he was appointed as a consultant radiologist at St Mary’s Hospital and a lecturer in radiology (a senior lecturer from 1987). He served as honorary president of the British Medical Students’ Association. He was a visiting professor to the University of British Columbia, Vancouver, Canada, the University of Queensland, Australia, and at Concord Hospital, Sydney, Australia. A flamboyant and popular doctor, he was renowned as an excellent radiological opinion and teacher. He made a major contribution to the medical school, serving as director of clinical studies and postgraduate studies and delivering his immensely popular ‘freshers’ lecture’ from 1970, continuing well into his retirement. In recognition of this he was awarded a lifetime achievement award by Imperial College in 2012. A past dean, Peter Richards, once said: ‘Few people have contributed as much to the spirit, humanity and identity of St Mary’s as has Dr Craig.’ He chaired the cases committee of the Medical Protection Society, dealing with medical litigation, and was a member of council of the Society and the president’s advisory board. He was president of the Royal College of Radiologists from 1989 to 1992, which he loved, delivering numerous invited lectures and after dinner speeches, at which he excelled. Retirement in 1993 brought a new career – writing. He wrote five books – four memoirs and one poetry book. In retirement, he was elected president of the Harveian Society of London. In addition to his love for St Mary’s and radiology, Oscar was very much a family man and committed Christian. Married to Nancy (Louise Burleigh) since their early days at medical school in Dublin, they had four daughters and a happy and fulfilled life together until Nancy’s untimely death in 2008. Oscar was heartbroken but happily met his second wife Gill (Mary Gillian Sprange) and life restarted. Oscar was a friend, mentor and inspiration to generations of medical students at St Mary’s, at King’s College in the Strand, where he delivered a regular lunchtime lecture, and radiologists throughout the world, and will be sorely missed. He died peacefully at home on 5 February 2020 at the age of 92, following a long illness, and was survived by his wife Gill, four daughters, one stepdaughter and fourteen grandchildren.