David McCallum plays ‘Ducky’, Dr. Mallard on NCIS, the no 1 show on television. NCIS is in its 12th season on CBS, averaging 22 million viewers a week in the US alone. It is one the most popular television drama series in the world. David also starred in the cult 1960s series, The Man From Uncle, as Russian agent, Illya Kuryakin, becoming a pin-up to a generation of young women, and in the science fiction series, The Invisible Man and Sapphire and Steel, which also achieved cult status. Once a Crooked Man is his debut novel
